1#!/usr/bin/env bash
2#
3# Test commit block job where top has two parents
4#
5# Copyright (C) 2017 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=kwolf@redhat.com
23
24seq=`basename $0`
25echo "QA output created by $seq"
26
27status=1 # failure is the default!
28
29_cleanup()
30{
31    rm -f "${TEST_IMG}.mid"
32    rm -f "${TEST_IMG}.ovl2"
33    rm -f "${TEST_IMG}.ovl3"
34    _cleanup_test_img
35    _cleanup_qemu
36}
37trap "_cleanup; exit \$status" 0 1 2 3 15
38
39# get standard environment, filters and checks
40. ./common.rc
41. ./common.filter
42. ./common.qemu
43
44_supported_fmt qcow2
45_supported_proto file
46
47size=64M
48
49echo
50echo === Preparing and starting VM ===
51echo
52
53TEST_IMG="${TEST_IMG}.base" _make_test_img $size
54IMGOPTS=$(_optstr_add "$IMGOPTS" "backing_fmt=$IMGFMT") \
55    TEST_IMG="${TEST_IMG}.mid" _make_test_img -b "${TEST_IMG}.base"
56_make_test_img -b "${TEST_IMG}.mid"
57TEST_IMG="${TEST_IMG}.ovl2" _make_test_img -b "${TEST_IMG}.mid"
58
59$QEMU_IO -c 'write -P 0x55 1M 64k' "${TEST_IMG}.mid" | _filter_qemu_io
60
61qemu_comm_method="qmp"
62qmp_pretty="y"
63
64_launch_qemu \
65    -blockdev "driver=${IMGFMT},file.driver=file,file.filename=${TEST_IMG}.base,node-name=base" \
66    -blockdev "driver=${IMGFMT},file.driver=file,file.filename=${TEST_IMG}.mid,node-name=mid,backing=base" \
67    -blockdev "driver=${IMGFMT},file.driver=file,file.filename=${TEST_IMG},node-name=top,backing=mid" \
68    -blockdev "driver=${IMGFMT},file.driver=file,file.filename=${TEST_IMG}.ovl2,node-name=top2,backing=mid"
69h=$QEMU_HANDLE
70_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" '^}'
71
72echo
73echo === Perform commit job ===
74echo
75
76_send_qemu_cmd $h \
77    "{ 'execute': 'block-commit',
78       'arguments': { 'job-id': 'commit0',
79                      'device': 'top',
80                      'base':'$TEST_IMG.base',
81                      'top': '$TEST_IMG.mid' } }" \
82    '"status": "null"'
83_send_qemu_cmd $h "" "^}"
84
85echo
86echo === Check that both top and top2 point to base now ===
87echo
88
89_send_qemu_cmd $h "{ 'execute': 'query-named-block-nodes' }" "^}" |
90    _filter_generated_node_ids | _filter_actual_image_size | _filter_img_info
91
92_send_qemu_cmd $h "{ 'execute': 'quit' }" "^}"
93wait=1 _cleanup_qemu
94
95_img_info
96TEST_IMG="$TEST_IMG.ovl2" _img_info
97
98
99echo
100echo === Preparing and starting VM with -drive ===
101echo
102
103TEST_IMG="${TEST_IMG}.base" _make_test_img $size
104TEST_IMG="${TEST_IMG}.mid" _make_test_img -b "${TEST_IMG}.base"
105_make_test_img -b "${TEST_IMG}.mid"
106TEST_IMG="${TEST_IMG}.ovl2" _make_test_img -b "${TEST_IMG}.mid"
107TEST_IMG="${TEST_IMG}.ovl3" _make_test_img -b "${TEST_IMG}.ovl2"
108
109$QEMU_IO -c 'write -P 0x55 1M 64k' "${TEST_IMG}.mid" | _filter_qemu_io
110
111qemu_comm_method="qmp"
112qmp_pretty="y"
113
114_launch_qemu \
115    -drive "driver=${IMGFMT},file=${TEST_IMG},node-name=top,backing.node-name=mid" \
116    -drive "driver=${IMGFMT},file=${TEST_IMG}.ovl3,node-name=top2,backing.backing=mid"
117h=$QEMU_HANDLE
118_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" '^}'
119
120echo
121echo === Perform commit job ===
122echo
123
124_send_qemu_cmd $h \
125    "{ 'execute': 'block-commit',
126       'arguments': { 'job-id': 'commit0',
127                      'device': 'top',
128                      'base':'$TEST_IMG.base',
129                      'top': '$TEST_IMG.mid' } }" \
130    '"status": "null"'
131_send_qemu_cmd $h "" "^}"
132
133echo
134echo === Check that both top and top2 point to base now ===
135echo
136
137_send_qemu_cmd $h "{ 'execute': 'query-named-block-nodes' }" "^}" |
138    _filter_generated_node_ids | _filter_actual_image_size | _filter_img_info
139
140_send_qemu_cmd $h "{ 'execute': 'quit' }" "^}"
141wait=1 _cleanup_qemu
142
143_img_info
144TEST_IMG="$TEST_IMG.ovl2" _img_info
145
146# success, all done
147echo "*** done"
148rm -f $seq.full
149status=0
150