4 # Test export internal snapshot by qemu-nbd, convert it by qemu-img.
6 # Copyright (C) 2013 IBM, Inc.
10 # This program is free software; you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation; either version 2 of the License, or
13 # (at your option) any later version.
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program. If not, see <http://www.gnu.org/licenses/>.
25 owner=xiawenc@linux.vnet.ibm.com
28 echo "QA output created by $seq"
30 status=1 # failure is the default!
32 _export_nbd_snapshot()
34 nbd_server_start_unix_socket "$TEST_IMG" -l $1
37 _export_nbd_snapshot1()
39 nbd_server_start_unix_socket "$TEST_IMG" -l snapshot.name=$1
46 _rm_test_img "$converted_image"
48 trap "_cleanup; exit \$status" 0 1 2 3 15
50 # get standard environment, filters and checks
59 _require_command QEMU_NBD
60 # Internal snapshots are (currently) impossible with refcount_bits=1,
61 # and generally impossible with external data files
62 _unsupported_imgopts 'refcount_bits=1[^0-9]' data_file
64 nbd_snapshot_img="nbd:unix:$nbd_unix_socket"
66 converted_image=$TEST_IMG.converted
68 # Use -f raw instead of -f $IMGFMT for the NBD connection
69 QEMU_IO_NBD="$QEMU_IO -f raw --cache=$CACHEMODE --aio=$AIOMODE"
72 echo "== preparing image =="
74 $QEMU_IO -c 'write -P 0xa 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io
75 $QEMU_IO -c 'write -P 0xb 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io
76 $QEMU_IMG snapshot -c sn1 "$TEST_IMG"
77 $QEMU_IO -c 'write -P 0xc 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io
78 $QEMU_IO -c 'write -P 0xd 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io
82 echo "== verifying the image file with patterns =="
83 $QEMU_IO -c 'read -P 0xc 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io
84 $QEMU_IO -c 'read -P 0xd 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io
86 _export_nbd_snapshot sn1
89 echo "== verifying the exported snapshot with patterns, method 1 =="
90 $QEMU_IO_NBD -r -c 'read -P 0xa 0x1000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
91 $QEMU_IO_NBD -r -c 'read -P 0xb 0x2000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
93 _export_nbd_snapshot1 sn1
96 echo "== verifying the exported snapshot with patterns, method 2 =="
97 $QEMU_IO_NBD -r -c 'read -P 0xa 0x1000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
98 $QEMU_IO_NBD -r -c 'read -P 0xb 0x2000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
100 $QEMU_IMG convert "$TEST_IMG" -l sn1 -O qcow2 "$converted_image"
103 echo "== verifying the converted snapshot with patterns, method 1 =="
104 $QEMU_IO -c 'read -P 0xa 0x1000 0x1000' "$converted_image" | _filter_qemu_io
105 $QEMU_IO -c 'read -P 0xb 0x2000 0x1000' "$converted_image" | _filter_qemu_io
107 $QEMU_IMG convert "$TEST_IMG" -l snapshot.name=sn1 -O qcow2 "$converted_image"
110 echo "== verifying the converted snapshot with patterns, method 2 =="
111 $QEMU_IO -c 'read -P 0xa 0x1000 0x1000' "$converted_image" | _filter_qemu_io
112 $QEMU_IO -c 'read -P 0xb 0x2000 0x1000' "$converted_image" | _filter_qemu_io