tests/generic/740

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
#
# FS QA Test No. 740
#
# cross check mkfs detection of foreign filesystems
#
. ./common/preamble
_begin_fstest mkfs auto quick

# Import common functions.
. ./common/filter

# a bunch of file systems don't support foreign fs detection
# ext* do support it, but disable the feature when called non-interactively
_exclude_fs ext2
_exclude_fs ext3
_exclude_fs ext4
_exclude_fs jfs
_exclude_fs ocfs2
_exclude_fs udf

_require_scratch_nocheck
_require_no_large_scratch_dev

_require_block_device "${SCRATCH_DEV}"
# not all the FS support zoned block device
_require_non_zoned_device "${SCRATCH_DEV}"

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

	case "$fs"  in
	ext2|ext3|ext4)
		preargs="-F"
		;;
	cramfs)
		# cramfs mkfs requires a directory argument
		preargs=/proc/fs
		;;
	gfs|gfs2)
		preop="echo y |"
		preargs="-p lock_nolock -j 1"
		;;
	jffs2)
		# mkfs.jffs2 doesn't work like a normal mkfs and just fails
		continue;
		;;
	jfs)
		preop="echo Y |"
		;;
	minix|msdos|vfat)
		# minix, msdos and vfat mkfs fails for large devices,
		# restrict to 2000 blocks
		postargs=2000
		;;
	ntfs)
		# "quick" format that doesn't zero the entire device
		postargs="--quick"
		;;
	reiser4)
		preop="echo y |"
		preargs="-f"
		;;
	*)
		;;
	esac

	# overwite the first few Kb - should blow away superblocks
	$here/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} -t $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