apfstests/tests/xfs/278

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2011 Red Hat, Inc.  All Rights Reserved.
#
# FS QA Test No. 278
#
# Test xfs_repair to ensure it fixes the lost+found link count
# at the first run. See also commit 198b747f255346bca64408875763b6ca0ed3d57d
# from xfsprogs tree.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=0	# 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

# real QA test starts here
_supported_fs xfs
_supported_os Linux
_require_scratch

rm -f $seqres.full
_scratch_mkfs >$seqres.full 2>&1
_scratch_mount

mkdir -p $SCRATCH_MNT/dir/subdir

#get inodes to be changed
DIR_INO=`ls -i $SCRATCH_MNT |awk '{print $1}'`
SUBDIR_INO=`ls -i $SCRATCH_MNT/dir |awk '{print $1}'`

_scratch_unmount

echo "Silence is goodness..."

set_ifield() {
	_scratch_xfs_set_metadata_field "$1" 0 "inode $2" >> $seqres.full
}

sfdir_prefix="$(_scratch_get_sfdir_prefix "$DIR_INO" || \
	_fail "Cannot determine sfdir prefix")"

# Corrupt DIR

set_ifield "${sfdir_prefix}.list[0].inumber.i4" "$DIR_INO"
set_ifield "${sfdir_prefix}.list[0].name" "$DIR_INO"
set_ifield "${sfdir_prefix}.list[0].offset" "$DIR_INO"
set_ifield "${sfdir_prefix}.list[0].namelen" "$DIR_INO"
set_ifield "${sfdir_prefix}.hdr.parent.i4" "$DIR_INO"
set_ifield "core.nlinkv2" "$DIR_INO"

# Corrupt SUBDIR
set_ifield "${sfdir_prefix}.hdr.parent.i4" "$SUBDIR_INO"
set_ifield "core.nlinkv2" "$SUBDIR_INO"

echo "===== BEGIN of xfs_repair =====" >> $seqres.full
echo "" >>$seqres.full

xfs_repair  $SCRATCH_DEV >> $seqres.full 2>&1
echo "===== END of xfs_repair =====" >> $seqres.full

exit