#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2019 Red Hat Inc.  All Rights Reserved.
#
# FS QA Test 064
#
# Make sure CAP_SETUID is not cleared over file copy up.
#
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
_require_scratch
_require_command "$SETCAP_PROG" setcap
_require_command "$GETCAP_PROG" getcap
_require_scratch_overlay_features metacopy

# Remove all files from previous tests
_scratch_mkfs

# Create test file
lowerdir=${OVL_BASE_SCRATCH_MNT}/${OVL_LOWER}
echo "This is lower1" >> ${lowerdir}/file1
echo "This is lower2" >> ${lowerdir}/file2

# set setuid bit
$SETCAP_PROG cap_setuid+ep ${lowerdir}/file1
$SETCAP_PROG cap_setuid+ep ${lowerdir}/file2

_scratch_mount "-o metacopy=on"

# Trigger file copy up without actually writing anything to file. This
# requires opening file with WRITE and xfs_io opens file with
# O_RDWR by default.
$XFS_IO_PROG -c "stat" ${SCRATCH_MNT}/file1 >>$seqres.full

# Make sure cap_setuid is still there
_getcap ${SCRATCH_MNT}/file1 | _filter_scratch

# Trigger metadata only copy-up
chmod 000 ${SCRATCH_MNT}/file2

# Trigger data copy-up
$XFS_IO_PROG -c "stat" ${SCRATCH_MNT}/file2 >>$seqres.full

# Make sure cap_setuid is still there
_getcap ${SCRATCH_MNT}/file2 | _filter_scratch

# success, all done
status=0
exit