| #! /bin/bash |
| # FS QA Test No. 046 |
| # |
| # Test fsck.overlay how to deal with redirect xattr in overlayfs. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2018 Huawei. All Rights Reserved. |
| # Author: zhangyi (F) <yi.zhang@huawei.com> |
| # |
| # 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 |
| . ./common/attr |
| |
| # remove previous $seqres.full before test |
| rm -f $seqres.full |
| |
| # real QA test starts here |
| _supported_fs overlay |
| _supported_os Linux |
| _require_scratch_nocheck |
| _require_attrs |
| _require_command "$FSCK_OVERLAY_PROG" fsck.overlay |
| |
| # remove all files from previous tests |
| _scratch_mkfs |
| |
| OVL_XATTR_OPAQUE_VAL=y |
| |
| # Create a redirect directory |
| make_redirect_dir() |
| { |
| local target=$1 |
| local value=$2 |
| |
| mkdir -p $target |
| $SETFATTR_PROG -n $OVL_XATTR_REDIRECT -v $value $target |
| } |
| |
| # Check redirect xattr |
| check_redirect() |
| { |
| local target=$1 |
| local expect=$2 |
| |
| value=$($GETFATTR_PROG --absolute-names --only-values -n \ |
| $OVL_XATTR_REDIRECT $target) |
| |
| [[ "$value" == "$expect" ]] || echo "Redirect xattr incorrect" |
| } |
| |
| check_no_redirect() |
| { |
| local target=$1 |
| |
| value=$($GETFATTR_PROG --absolute-names -d -m \ |
| $OVL_XATTR_REDIRECT $target) |
| |
| [[ -z "$value" ]] || echo "Redirect xattr not empty" |
| } |
| |
| # Check opaque xattr |
| check_opaque() |
| { |
| local target=$1 |
| |
| value=$($GETFATTR_PROG --absolute-names --only-values -n \ |
| $OVL_XATTR_OPAQUE $target) |
| |
| [[ "$value" == "$OVL_XATTR_OPAQUE_VAL" ]] || \ |
| echo "Opaque xattr incorrect" |
| } |
| |
| # Create a whiteout |
| make_whiteout() |
| { |
| for arg in $*; do |
| mknod $arg c 0 0 |
| done |
| } |
| |
| # Check whiteout |
| check_whiteout() |
| { |
| for arg in $*; do |
| local ttype=`stat -c "%F:%t,%T" $arg` |
| |
| [[ "$ttype" == "character special file:0,0" ]] || \ |
| echo "Valid whiteout removed incorrectly" |
| done |
| } |
| |
| # Create test directories |
| lowerdir=$OVL_BASE_SCRATCH_MNT/lower |
| lowerdir2=$OVL_BASE_SCRATCH_MNT/lower2 |
| upperdir=$OVL_BASE_SCRATCH_MNT/upper |
| workdir=$OVL_BASE_SCRATCH_MNT/workdir |
| |
| make_test_dirs() |
| { |
| rm -rf $lowerdir $lowerdir2 $upperdir $workdir |
| mkdir -p $lowerdir $lowerdir2 $upperdir $workdir |
| } |
| |
| # Test invalid redirect xattr point to a nonexistent origin, should remove |
| echo "+ Invalid redirect" |
| make_test_dirs |
| make_redirect_dir $upperdir/testdir "invalid" |
| |
| _overlay_fsck_dirs $lowerdir $upperdir $workdir -p >> $seqres.full 2>&1 || \ |
| echo "fsck should not fail" |
| check_no_redirect $upperdir/testdir |
| |
| # Test invalid redirect xattr point to a file origin, should remove |
| echo "+ Invalid redirect(2)" |
| make_test_dirs |
| touch $lowerdir/origin |
| make_redirect_dir $upperdir/testdir "origin" |
| |
| _overlay_fsck_dirs $lowerdir $upperdir $workdir -p >> $seqres.full 2>&1 || \ |
| echo "fsck should not fail" |
| check_no_redirect $upperdir/testdir |
| |
| # Test valid redirect xattr point to a directory origin in the same directory, |
| # should not remove |
| echo "+ Valid redirect" |
| make_test_dirs |
| mkdir $lowerdir/origin |
| make_whiteout $upperdir/origin |
| make_redirect_dir $upperdir/testdir "origin" |
| |
| _overlay_fsck_dirs $lowerdir $upperdir $workdir -p >> $seqres.full 2>&1 || \ |
| echo "fsck should not fail" |
| check_redirect $upperdir/testdir "origin" |
| |
| # Test valid redirect xattr point to a directory origin in different directories |
| # should not remove |
| echo "+ Valid redirect(2)" |
| make_test_dirs |
| mkdir $lowerdir/origin |
| make_whiteout $upperdir/origin |
| make_redirect_dir $upperdir/testdir1/testdir2 "/origin" |
| |
| _overlay_fsck_dirs $lowerdir $upperdir $workdir -p >> $seqres.full 2>&1 || \ |
| echo "fsck should not fail" |
| check_redirect $upperdir/testdir1/testdir2 "/origin" |
| |
| # Test valid redirect xattr but missing whiteout to cover lower target, |
| # should fix whiteout |
| echo "+ Missing whiteout" |
| make_test_dirs |
| mkdir $lowerdir/origin |
| make_redirect_dir $upperdir/testdir "origin" |
| |
| _overlay_fsck_dirs $lowerdir $upperdir $workdir -p >> $seqres.full 2>&1 || \ |
| echo "fsck should not fail" |
| check_redirect $upperdir/testdir "origin" |
| check_whiteout $upperdir/origin |
| |
| # Test valid redirect xattrs exchanged by rename, should not remove |
| echo "+ Valid redirect(3)" |
| make_test_dirs |
| mkdir $lowerdir/{testdir1,testdir2} |
| make_redirect_dir $upperdir/testdir1 "testdir2" |
| make_redirect_dir $upperdir/testdir2 "testdir1" |
| |
| _overlay_fsck_dirs $lowerdir $upperdir $workdir -p >> $seqres.full 2>&1 || \ |
| echo "fsck should not fail" |
| check_redirect $upperdir/testdir1 "testdir2" |
| check_redirect $upperdir/testdir2 "testdir1" |
| |
| # Test invalid redirect xattr with lower same name directory exists, |
| # should remove invalid redirect xattr and set opaque in yes mode |
| echo "+ Invalid redirect(3)" |
| make_test_dirs |
| mkdir $lowerdir/testdir |
| make_redirect_dir $upperdir/testdir "invalid" |
| |
| # Question get yes answer: Should set opaque dir ? |
| _overlay_fsck_dirs $lowerdir $upperdir $workdir -y >> $seqres.full 2>&1 || \ |
| echo "fsck should not fail" |
| check_no_redirect $upperdir/testdir |
| check_opaque $upperdir/testdir |
| |
| # Test duplicate redirect xattrs point to one origin, should fail in |
| # auto mode, and should remove either of the duplicates in yes mode |
| echo "+ Duplicate redirect" |
| make_test_dirs |
| mkdir $lowerdir2/origin |
| make_redirect_dir $lowerdir/testdir1 "origin" |
| make_redirect_dir $lowerdir/testdir2 "origin" |
| make_redirect_dir $upperdir/testdir3 "origin" |
| |
| _overlay_fsck_dirs "$lowerdir:$lowerdir2" $upperdir $workdir -p >> \ |
| $seqres.full 2>&1 && echo "fsck should fail" |
| |
| # Question get yes answer: Duplicate redirect directory, remove xattr ? |
| _overlay_fsck_dirs "$lowerdir:$lowerdir2" $upperdir $workdir -y >> \ |
| $seqres.full 2>&1 || echo "fsck should not fail" |
| redirect_1=`check_redirect $lowerdir/testdir1 "origin" 2>/dev/null` |
| redirect_2=`check_redirect $lowerdir/testdir2 "origin" 2>/dev/null` |
| [[ $redirect_1 == $redirect_2 ]] && echo "Redirect xattr incorrect" |
| check_no_redirect $upperdir/testdir3 |
| |
| # Test duplicate redirect xattr duplicate with merge directory, should |
| # fail in auto mode, and should remove the redirect xattr in yes mode |
| echo "+ Duplicate redirect(2)" |
| make_test_dirs |
| mkdir $lowerdir/origin $upperdir/origin |
| make_redirect_dir $upperdir/testdir "origin" |
| |
| _overlay_fsck_dirs $lowerdir $upperdir $workdir -p >> $seqres.full 2>&1 && \ |
| echo "fsck should fail" |
| |
| # Question get yes answer: Duplicate redirect directory, remove xattr ? |
| _overlay_fsck_dirs $lowerdir $upperdir $workdir -y >> $seqres.full 2>&1 || \ |
| echo "fsck should not fail" |
| check_no_redirect $upperdir/testdir |
| |
| # Test duplicate redirect xattr with lower same name directory exists, |
| # should remove the duplicate redirect xattr and set opaque in yes mode |
| echo "+ Duplicate redirect(3)" |
| make_test_dirs |
| mkdir $lowerdir/{origin,testdir} $upperdir/origin |
| make_redirect_dir $upperdir/testdir "invalid" |
| |
| # Question one get yes answer: Duplicate redirect directory, remove xattr? |
| # Question two get yes answer: Should set opaque dir ? |
| _overlay_fsck_dirs $lowerdir $upperdir $workdir -y >> $seqres.full 2>&1 || \ |
| echo "fsck should not fail" |
| check_no_redirect $upperdir/testdir |
| check_opaque $upperdir/testdir |
| |
| # success, all done |
| status=0 |
| exit |