apfstests/tests/shared/032

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
#
# FS QA Test No. 032
#
# cross check mkfs detection of foreign filesystems
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
rm -f $seqres.full

# get standard environment, filters and checks
. ./common/rc
. ./common/filter

# real QA test starts here
_supported_fs xfs btrfs
_supported_os Linux

_require_scratch_nocheck
_require_no_large_scratch_dev

# mkfs.btrfs did not have overwrite detection at first
if [ "$FSTYP" == "btrfs" ]; then
	grep -q 'force overwrite' `echo $MKFS_BTRFS_PROG | awk '{print $1}'` || \
		_notrun "Installed mkfs.btrfs does not support -f option"
fi

echo "Silence is golden."
for fs in `echo ${MKFS_PROG}.* | sed -e "s:${MKFS_PROG}.::g"`
do
	preop=""	# for special input needs
	preargs=""	# for any special pre-device options
	postargs=""	# for any special post-device options

	# minix, msdos and vfat mkfs fails for large devices, restrict to 2000 blocks
	[ $fs = minix ] && postargs=2000
	[ $fs = msdos ] && postargs=2000
	[ $fs = vfat ] && postargs=2000
	# these folks prompt before writing
	[ $fs = jfs ] && preop="echo Y |"
	[ $fs = gfs ] && preop="echo y |" && preargs="-p lock_nolock -j 1"
	[ $fs = gfs2 ] && preop="echo y |" && preargs="-p lock_nolock -j 1"
	[ $fs = reiserfs ] && preop="echo y |" && preargs="-f"
	# cramfs mkfs requires a directory argument
	[ $fs = cramfs ] && preargs=/proc/fs
	[ $fs = ext2 ] && preargs="-F"
	[ $fs = ext3 ] && preargs="-F"
	[ $fs = ext4 ] && preargs="-F"
	[ $fs = ext4dev ] && preargs="-F"

	# overwite the first few Kb - should blow away superblocks
	src/devzero -n 20 $SCRATCH_DEV >/dev/null

	# create a filesystem of this type
	echo "=== Creating $fs filesystem..." >>$seqres.full
	echo "    ( $preop mkfs -t $fs $preargs $SCRATCH_DEV $postargs )" >>$seqres.full
	eval $preop mkfs -t $fs $preargs $SCRATCH_DEV $postargs >>$seqres.full 2>&1

	if [ $? -eq 0 ] ; then
		# next, ensure we don't overwrite it
		echo "=== Attempting $FSTYP overwrite of $fs..." >>$seqres.full
		${MKFS_PROG}.$FSTYP $SCRATCH_DEV >>$seqres.full 2>&1

		[ $? -eq 0 ] && echo "Failed - overwrote fs type ${fs}!"
	else
		echo "mkfs of type ${fs} failed" >>$seqres.full
	fi
done

# success, all done
status=0
exit