| #! /bin/bash |
| # FS QA Test 014 |
| # |
| # Test copy-up of lowerdir with opaque xattr set. |
| # |
| # When copying up a directory with opaque xattr set, the xattr was copied up as |
| # well, after a remount the opaque flag is honored so the copied-up directory |
| # is treated as opaque, which causes files created in the lowerdir to be hidden |
| # when using multiple lower directories. |
| # |
| # This is fixed by "ovl: don't copy up opaqueness". |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2016 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 $seqres.full |
| |
| # real QA test starts here |
| _supported_fs overlay |
| _supported_os Linux |
| # Use non-default scratch underlying overlay dirs, we need to check |
| # them explicity after test. |
| _require_scratch_nocheck |
| |
| # Remove all files from previous tests |
| _scratch_mkfs |
| |
| # Create multiple lowerdirs and upperdir, workdir, and testdir on lowerdir |
| lowerdir1=$OVL_BASE_SCRATCH_MNT/lower1 |
| lowerdir2=$OVL_BASE_SCRATCH_MNT/lower2 |
| upperdir=$OVL_BASE_SCRATCH_MNT/upper |
| workdir=$OVL_BASE_SCRATCH_MNT/workdir |
| # When overlay inode index feature is enabled, a workdir cannot be reused |
| # with a different upperdir. workdir2 in this test is used as the workdir |
| # when lowerdir2 is used as the upperdir. |
| workdir2=$OVL_BASE_SCRATCH_MNT/workdir2 |
| mkdir -p $lowerdir1 $lowerdir2 $upperdir $workdir $workdir2 |
| mkdir -p $lowerdir1/testdir/d |
| |
| # mount overlay with $lowerdir2 as upperdir, and remove & recreate testdir, |
| # make testdir on $lowerdir2 opaque |
| _overlay_scratch_mount_dirs $lowerdir1 $lowerdir2 $workdir2 |
| rm -rf $SCRATCH_MNT/testdir |
| mkdir -p $SCRATCH_MNT/testdir/visibledir |
| # unmount overlayfs but not base fs |
| $UMOUNT_PROG $SCRATCH_MNT |
| |
| # check overlayfs |
| _overlay_check_scratch_dirs $lowerdir1 $lowerdir2 $workdir2 |
| |
| # mount overlay again, with lowerdir1 and lowerdir2 as multiple lowerdirs, |
| # and create a new file in testdir, triggers copyup from lowerdir, |
| # copyup should not copy overlayfs private xattr |
| _overlay_scratch_mount_dirs "$lowerdir2:$lowerdir1" $upperdir $workdir |
| touch $SCRATCH_MNT/testdir/visiblefile |
| |
| # umount and mount overlay again, buggy kernel treats the copied-up dir as |
| # opaque, visibledir is not seen in merged dir. |
| $UMOUNT_PROG $SCRATCH_MNT |
| _overlay_scratch_mount_dirs "$lowerdir2:$lowerdir1" $upperdir $workdir |
| ls $SCRATCH_MNT/testdir |
| |
| # check overlayfs |
| _overlay_check_scratch_dirs "$lowerdir2:$lowerdir1" $upperdir $workdir |
| |
| # success, all done |
| status=0 |
| exit |