qemu/tests/qemu-iotests/004

#!/usr/bin/env bash
# group: rw auto quick
#
# Make sure we can't read and write outside of the image size.
#
# Copyright (C) 2009 Red Hat, Inc.
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will 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, see <http://www.gnu.org/licenses/>.
#

# creator
owner=hch@lst.de

seq=`basename $0`
echo "QA output created by $seq"

status=1	# failure is the default!

_cleanup()
{
	_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15

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

_supported_fmt raw qcow qcow2 qed vdi vmdk vhdx luks
_supported_proto generic


size=128M
pre_offset=127M
past_offset=140M

_make_test_img $size

echo
echo "write before image boundary"
$QEMU_IO -c "write $pre_offset 1M" "$TEST_IMG" | _filter_qemu_io

echo
echo "write into image boundary"
$QEMU_IO -c "write $pre_offset 4M" "$TEST_IMG"

echo
echo "write at image boundary"
$QEMU_IO -c "write $size 4096" "$TEST_IMG"

echo
echo "write past image boundary"
$QEMU_IO -c "write $past_offset 4096" "$TEST_IMG"

echo
echo "pwrite past image boundary"
$QEMU_IO -c "write -p $past_offset 4096" "$TEST_IMG"

echo
echo "writev past image boundary"
$QEMU_IO -c "writev $past_offset 4096" "$TEST_IMG"

echo
echo "read before image boundary"
$QEMU_IO -c "read $pre_offset 1M" "$TEST_IMG" | _filter_qemu_io

echo
echo "read into image boundary"
$QEMU_IO -c "read $pre_offset 4M" "$TEST_IMG"

echo
echo "read at image boundary"
$QEMU_IO -c "read $size 4096" "$TEST_IMG"

echo
echo "read past image boundary"
$QEMU_IO -c "read $past_offset 4096" "$TEST_IMG"

echo
echo "pread past image boundary"
$QEMU_IO -c "read -p $past_offset 4096" "$TEST_IMG"

echo
echo "readv past image boundary"
$QEMU_IO -c "readv $past_offset 4096" "$TEST_IMG"


# success, all done
echo "*** done"
rm -f $seq.full
status=0