#! /bin/bash
# FS QA Test No. 157
#
# Check that various invalid reflink scenarios are rejected.
#
#-----------------------------------------------------------------------
# Copyright (c) 2015, Oracle and/or its affiliates.  All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#-----------------------------------------------------------------------

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 -rf $tmp.* $testdir1
}

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

# real QA test starts here
_supported_os Linux
_require_test_reflink
_require_scratch_reflink

rm -f $seqres.full

echo "Format and mount"
_scratch_mkfs > $seqres.full 2>&1
_scratch_mount >> $seqres.full 2>&1

testdir1="$TEST_DIR/test-$seq"
rm -rf $testdir1
mkdir $testdir1

testdir2=$SCRATCH_MNT/test-$seq
mkdir $testdir2

echo "Create the original files"
blksz="$(stat -f $testdir1 -c '%S')"
blks=1000
margin='7%'
sz=$((blksz * blks))
free_blocks0=$(stat -f $testdir1 -c '%f')
nr=4
filesize=$((blksz * nr))
_pwrite_byte 0x61 0 $sz $testdir1/file1 >> $seqres.full
_pwrite_byte 0x61 0 $sz $testdir1/file2 >> $seqres.full
_pwrite_byte 0x61 0 $sz $testdir2/file1 >> $seqres.full
_pwrite_byte 0x61 0 $sz $testdir2/file2 >> $seqres.full
mkdir $testdir1/dir1
seq 1 $((2 * blksz / 250)) | while read f; do
	touch $testdir1/dir1/$f
done
mknod $testdir1/dev1 c 1 3
mkfifo $testdir1/fifo1
sync

_filter_enotty() {
	sed -e 's/Inappropriate ioctl for device/Invalid argument/g'
}

_filter_einval() {
	sed -e 's/Invalid argument/Bad file descriptor/g'
}

echo "Try cross-device reflink"
_reflink_range $testdir1/file1 0 $testdir2/file1 0 $blksz

echo "Try unaligned reflink"
_reflink_range $testdir1/file1 37 $testdir1/file1 59 23

echo "Try overlapping reflink"
_reflink_range $testdir1/file1 0 $testdir1/file1 1 $((blksz * 2))

echo "Try reflink past EOF"
_reflink_range $testdir1/file1 $(( (blks + 10) * blksz)) $testdir1/file1 0 $blksz

echo "Try to reflink a dir"
_reflink_range $testdir1/dir1 0 $testdir1/file2 0 $blksz

echo "Try to reflink a device"
_reflink_range $testdir1/dev1 0 $testdir1/file2 0 $blksz

echo "Try to reflink to a dir"
_reflink_range $testdir1/file1 0 $testdir1/dir1 0 $blksz 2>&1 | _filter_test_dir

echo "Try to reflink to a device"
_reflink_range $testdir1/file1 0 $testdir1/dev1 0 $blksz 2>&1 | _filter_enotty

echo "Try to reflink to a fifo"
_reflink_range $testdir1/file1 0 $testdir1/fifo1 0 $blksz -n 2>&1 | _filter_enotty

echo "Try to reflink an append-only file"
_reflink_range $testdir1/file1 0 $testdir1/file3 0 $blksz -a 2>&1 | _filter_einval

echo "Reflink two files"
_reflink_range $testdir1/file1 0 $testdir1/file2 0 $blksz >> $seqres.full
_reflink_range $testdir2/file1 0 $testdir2/file2 0 $blksz >> $seqres.full

# success, all done
status=0
exit
