3 # Test reading dirty bitmap over NBD
5 # Copyright (C) 2018 Red Hat, Inc.
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.
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.
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/>.
22 echo "QA output created by $seq"
25 status=1 # failure is the default!
33 trap "_cleanup; exit \$status" 0 1 2 3 15
35 # get standard environment, filters and checks
41 _supported_proto file # uses NBD as well
44 function do_run_qemu()
47 $QEMU -nographic -qmp stdio -serial none "$@"
53 do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qmp \
54 | _filter_qemu | _filter_imgfmt \
55 | _filter_actual_image_size
59 echo "=== Create partially sparse image, then add dirty bitmap ==="
63 $QEMU_IO -c 'w -P 0x11 1M 2M' "$TEST_IMG" | _filter_qemu_io
65 { "execute": "qmp_capabilities" }
66 { "execute": "blockdev-add",
72 "filename": "$TEST_IMG"
76 { "execute": "block-dirty-bitmap-add",
87 echo "=== Write part of the file under active bitmap ==="
90 $QEMU_IO -c 'w -P 0x22 2M 2M' "$TEST_IMG" | _filter_qemu_io
93 echo "=== End dirty bitmap, and start serving image over NBD ==="
96 _launch_qemu 2> >(_filter_nbd)
99 _send_qemu_cmd $QEMU_HANDLE '{"execute":"qmp_capabilities"}' "return"
100 _send_qemu_cmd $QEMU_HANDLE '{"execute":"blockdev-add",
101 "arguments":{"driver":"qcow2", "node-name":"n",
102 "file":{"driver":"file", "filename":"'"$TEST_IMG"'"}}}' "return"
103 _send_qemu_cmd $QEMU_HANDLE '{"execute":"x-block-dirty-bitmap-disable",
104 "arguments":{"node":"n", "name":"b"}}' "return"
105 _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-start",
106 "arguments":{"addr":{"type":"unix",
107 "data":{"path":"'"$TEST_DIR/nbd"'"}}}}' "return"
108 _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add",
109 "arguments":{"device":"n"}}' "return"
110 _send_qemu_cmd $QEMU_HANDLE '{"execute":"x-nbd-server-add-bitmap",
111 "arguments":{"name":"n", "bitmap":"b"}}' "return"
114 echo "=== Contrast normal status with dirty-bitmap status ==="
117 QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT
118 IMG="driver=nbd,export=n,server.type=unix,server.path=$TEST_DIR/nbd"
119 $QEMU_IO -r -c 'r -P 0 0 1m' -c 'r -P 0x11 1m 1m' \
120 -c 'r -P 0x22 2m 2m' --image-opts "$IMG" | _filter_qemu_io
121 $QEMU_IMG map --output=json --image-opts \
122 "$IMG" | _filter_qemu_img_map
123 $QEMU_IMG map --output=json --image-opts \
124 "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b" | _filter_qemu_img_map
127 echo "=== End NBD server ==="
130 _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-remove",
131 "arguments":{"name":"n"}}' "return"
132 _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-stop"}' "return"
133 _send_qemu_cmd $QEMU_HANDLE '{"execute":"quit"}' "return"