1#!/usr/bin/env bash
2#
3# Test multiple blockdev-snapshot calls with 'backing': null
4#
5# Copyright (C) 2019 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
21seq=$(basename "$0")
22echo "QA output created by $seq"
23
24status=1	# failure is the default!
25
26_cleanup()
27{
28    _cleanup_test_img
29}
30trap "_cleanup; exit \$status" 0 1 2 3 15
31
32# get standard environment, filters and checks
33. ./common.rc
34. ./common.filter
35
36# This is a qcow2 regression test
37_supported_fmt qcow2
38_supported_proto file
39_supported_os Linux
40
41do_run_qemu()
42{
43    echo Testing: "$@"
44    $QEMU -nographic -qmp-pretty stdio -nodefaults "$@"
45    echo
46}
47
48run_qemu()
49{
50    do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_qmp |
51        _filter_generated_node_ids | _filter_imgfmt | _filter_actual_image_size
52}
53
54TEST_IMG="$TEST_IMG.base" _make_test_img 64M
55TEST_IMG="$TEST_IMG.mid" _make_test_img -b "$TEST_IMG.base"
56_make_test_img -b "$TEST_IMG.mid"
57
58run_qemu \
59    -blockdev file,node-name=base,filename="$TEST_IMG.base" \
60     -blockdev file,node-name=midf,filename="$TEST_IMG.mid" \
61     -blockdev '{"driver":"qcow2","node-name":"mid","file":"midf","backing":null}' \
62     -blockdev file,node-name=topf,filename="$TEST_IMG" \
63     -blockdev '{"driver":"qcow2","file":"topf","node-name":"top","backing":null}' \
64<<EOF
65{"execute":"qmp_capabilities"}
66{"execute":"blockdev-snapshot","arguments":{"node":"base","overlay":"mid"}}
67{"execute":"blockdev-snapshot","arguments":{"node":"mid","overlay":"top"}}
68{"execute":"query-named-block-nodes"}
69{"execute":"x-debug-query-block-graph"}
70{"execute":"quit"}
71EOF
72
73# success, all done
74echo "*** done"
75rm -f $seq.full
76status=0
77