xref: /openbmc/qemu/tests/qemu-iotests/128 (revision b097ba37)
1#!/usr/bin/env bash
2#
3# Test that opening O_DIRECT succeeds when image file I/O produces EIO
4#
5# Copyright (C) 2015 Red Hat, Inc.
6#
7# This program is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 2 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program.  If not, see <http://www.gnu.org/licenses/>.
19#
20
21# creator
22owner=stefanha@redhat.com
23
24seq=`basename $0`
25echo "QA output created by $seq"
26
27status=1	# failure is the default!
28
29devname="eiodev$$"
30sudo=""
31
32_sudo_qemu_io_wrapper()
33{
34    (exec $sudo "$QEMU_IO_PROG" $QEMU_IO_OPTIONS "$@")
35}
36
37_setup_eiodev()
38{
39	# This test should either be run as root or with passwordless sudo
40	for cmd in "" "sudo -n"; do
41		echo "0 $((1024 * 1024 * 1024 / 512)) error" | \
42			$cmd dmsetup create "$devname" 2>/dev/null
43		if [ "$?" -eq 0 ]; then
44			sudo="$cmd"
45			return
46		fi
47	done
48	_notrun "root privileges required to run dmsetup"
49}
50
51_cleanup_eiodev()
52{
53	for cmd in "" "sudo -n"; do
54		$cmd dmsetup remove "$devname" 2>/dev/null
55		if [ "$?" -eq 0 ]; then
56			return
57		fi
58	done
59}
60
61_cleanup()
62{
63	_cleanup_eiodev
64}
65trap "_cleanup; exit \$status" 0 1 2 3 15
66
67# get standard environment, filters and checks
68. ./common.rc
69. ./common.filter
70
71_supported_fmt raw
72_supported_proto file
73_supported_os Linux
74
75_setup_eiodev
76
77TEST_IMG="/dev/mapper/$devname"
78
79echo
80echo "== reading from error device =="
81# Opening image should succeed but the read operation should fail
82_sudo_qemu_io_wrapper --format "$IMGFMT" --nocache \
83                      -c "read 0 65536" "$TEST_IMG" \
84    | _filter_qemu_io
85
86# success, all done
87echo "*** done"
88rm -f $seq.full
89status=0
90