#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Red Hat Inc.  All Rights Reserved.
#
# FS QA Test 451
#
# Make sure xfs_repair can repair root inode parent's pointer
# when it contains a bogus ino when it's using shot form directory

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

echo "Silence is golden"

# real QA test starts here

# Modify as appropriate.
_supported_fs xfs
_require_scratch

_scratch_mkfs >> /dev/null 2>&1

rootino=$(_scratch_xfs_get_metadata_field 'rootino' 'sb 0')

prefix=$(_scratch_get_sfdir_prefix ${rootino} || \
			_fail "Cannot determine sfdir prefix")

# Corrupt root inode parent pointer
_scratch_xfs_set_metadata_field "${prefix}.hdr.parent.i4" 0 "inode ${rootino}"\
						>> $seqres.full 2>&1

_scratch_xfs_repair >> $seqres.full 2>&1

# Post-test integrity check will detect any remaining corruption

status=0
exit