| 1 | #!/usr/bin/env bash |
| 2 | # group: rw quick |
| 3 | # |
| 4 | # Test reading dirty bitmap over NBD |
| 5 | # |
| 6 | # Copyright (C) 2018-2020 Red Hat, Inc. |
| 7 | # |
| 8 | # This program is free software; you can redistribute it and/or modify |
| 9 | # it under the terms of the GNU General Public License as published by |
| 10 | # the Free Software Foundation; either version 2 of the License, or |
| 11 | # (at your option) any later version. |
| 12 | # |
| 13 | # This program is distributed in the hope that it will be useful, |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | # GNU General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 | # |
| 21 | |
| 22 | seq="$(basename $0)" |
| 23 | echo "QA output created by $seq" |
| 24 | |
| 25 | status=1 # failure is the default! |
| 26 | |
| 27 | _cleanup() |
| 28 | { |
| 29 | nbd_server_stop |
| 30 | _cleanup_test_img |
| 31 | _cleanup_qemu |
| 32 | rm -f "$SOCK_DIR/nbd" |
| 33 | } |
| 34 | trap "_cleanup; exit \$status" 0 1 2 3 15 |
| 35 | |
| 36 | # get standard environment, filters and checks |
| 37 | . ./common.rc |
| 38 | . ./common.filter |
| 39 | . ./common.qemu |
| 40 | . ./common.nbd |
| 41 | |
| 42 | _supported_fmt qcow2 |
| 43 | _supported_proto file # uses NBD as well |
| 44 | _supported_os Linux |
| 45 | # Persistent dirty bitmaps require compat=1.1 |
| 46 | _unsupported_imgopts 'compat=0.10' |
| 47 | |
| 48 | do_run_qemu() |
| 49 | { |
| 50 | echo Testing: "$@" |
| 51 | $QEMU -nographic -qmp stdio -serial none "$@" |
| 52 | echo |
| 53 | } |
| 54 | |
| 55 | run_qemu() |
| 56 | { |
| 57 | do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qmp \ |
| 58 | | _filter_qemu | _filter_imgfmt \ |
| 59 | | _filter_actual_image_size |
| 60 | } |
| 61 | |
| 62 | echo |
| 63 | echo "=== Create partially sparse image, then add dirty bitmaps ===" |
| 64 | echo |
| 65 | |
| 66 | # Two bitmaps, to contrast granularity issues |
| 67 | # Also note that b will be disabled, while b2 is left enabled, to |
| 68 | # check for read-only interactions |
| 69 | _make_test_img -o cluster_size=4k 4M |
| 70 | $QEMU_IO -c 'w -P 0x11 1M 2M' "$TEST_IMG" | _filter_qemu_io |
| 71 | run_qemu <<EOF |
| 72 | { "execute": "qmp_capabilities" } |
| 73 | { "execute": "blockdev-add", |
| 74 | "arguments": { |
| 75 | "driver": "$IMGFMT", |
| 76 | "node-name": "n", |
| 77 | "file": { |
| 78 | "driver": "file", |
| 79 | "filename": "$TEST_IMG" |
| 80 | } |
| 81 | } |
| 82 | } |
| 83 | { "execute": "block-dirty-bitmap-add", |
| 84 | "arguments": { |
| 85 | "node": "n", |
| 86 | "name": "b", |
| 87 | "persistent": true, |
| 88 | "granularity": 65536 |
| 89 | } |
| 90 | } |
| 91 | { "execute": "block-dirty-bitmap-add", |
| 92 | "arguments": { |
| 93 | "node": "n", |
| 94 | "name": "b2", |
| 95 | "persistent": true, |
| 96 | "granularity": 512 |
| 97 | } |
| 98 | } |
| 99 | { "execute": "quit" } |
| 100 | EOF |
| 101 | |
| 102 | echo |
| 103 | echo "=== Write part of the file under active bitmap ===" |
| 104 | echo |
| 105 | |
| 106 | $QEMU_IO -c 'w -P 0x22 512 512' -c 'w -P 0x33 2M 2M' "$TEST_IMG" \ |
| 107 | | _filter_qemu_io |
| 108 | |
| 109 | echo |
| 110 | echo "=== End dirty bitmaps, and start serving image over NBD ===" |
| 111 | echo |
| 112 | |
| 113 | _launch_qemu -object iothread,id=io0 2> >(_filter_nbd) |
| 114 | |
| 115 | # Intentionally provoke some errors as well, to check error handling |
| 116 | silent= |
| 117 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"qmp_capabilities"}' "return" |
| 118 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"blockdev-add", |
| 119 | "arguments":{"driver":"qcow2", "node-name":"n", |
| 120 | "file":{"driver":"file", "filename":"'"$TEST_IMG"'"}}}' "return" |
| 121 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"block-dirty-bitmap-disable", |
| 122 | "arguments":{"node":"n", "name":"b"}}' "return" |
| 123 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"blockdev-add", |
| 124 | "arguments":{"driver":"null-co", "node-name":"null", |
| 125 | "size": 4194304}}' "return" |
| 126 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"block-dirty-bitmap-add", |
| 127 | "arguments":{"node":"null", "name":"b3"}}' "return" |
| 128 | |
| 129 | for attempt in normal iothread; do |
| 130 | |
| 131 | echo |
| 132 | echo "=== Set up NBD with $attempt access ===" |
| 133 | echo |
| 134 | if [ $attempt = iothread ]; then |
| 135 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"x-blockdev-set-iothread", |
| 136 | "arguments":{"node-name":"n", "iothread":"io0"}}' "return" |
| 137 | fi |
| 138 | |
| 139 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", |
| 140 | "arguments":{"device":"n"}}' "error" # Attempt add without server |
| 141 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-start", |
| 142 | "arguments":{"addr":{"type":"unix", |
| 143 | "data":{"path":"'"$SOCK_DIR/nbd"'"}}}}' "return" |
| 144 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-start", |
| 145 | "arguments":{"addr":{"type":"unix", |
| 146 | "data":{"path":"'"$SOCK_DIR/nbd"1'"}}}}' "error" # Attempt second server |
| 147 | $QEMU_NBD_PROG -L -k "$SOCK_DIR/nbd" |
| 148 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", |
| 149 | "arguments":{"device":"n", "bitmap":"b"}}' "return" |
| 150 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", |
| 151 | "arguments":{"device":"nosuch"}}' "error" # Attempt to export missing node |
| 152 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", |
| 153 | "arguments":{"device":"n"}}' "error" # Attempt to export same name twice |
| 154 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", |
| 155 | "arguments":{"device":"n", "name":"n2", |
| 156 | "bitmap":"b2"}}' "error" # enabled vs. read-only |
| 157 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", |
| 158 | "arguments":{"device":"n", "name":"n2", |
| 159 | "bitmap":"b3"}}' "error" # Missing bitmap |
| 160 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-add", |
| 161 | "arguments":{"device":"n", "name":"n2", "writable":true, |
| 162 | "description":"some text", "bitmap":"b2"}}' "return" |
| 163 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"block-export-add", |
| 164 | "arguments":{"type": "nbd", "node-name":"n", "id":"n3", "name": "n3", |
| 165 | "bitmaps":[{"node":"null","name":"b3"}]}}' "return" |
| 166 | $QEMU_NBD_PROG -L -k "$SOCK_DIR/nbd" |
| 167 | |
| 168 | echo |
| 169 | echo "=== Contrast normal status to large granularity dirty-bitmap ===" |
| 170 | echo |
| 171 | |
| 172 | QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT |
| 173 | IMG="driver=nbd,export=n,server.type=unix,server.path=$SOCK_DIR/nbd" |
| 174 | $QEMU_IO -r -c 'r -P 0x22 512 512' -c 'r -P 0 512k 512k' -c 'r -P 0x11 1m 1m' \ |
| 175 | -c 'r -P 0x33 2m 2m' --image-opts "$IMG" | _filter_qemu_io |
| 176 | $QEMU_IMG map --output=json --image-opts \ |
| 177 | "$IMG" | _filter_qemu_img_map |
| 178 | $QEMU_IMG map --output=json --image-opts \ |
| 179 | "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b" | _filter_qemu_img_map |
| 180 | |
| 181 | echo |
| 182 | echo "=== Contrast to small granularity dirty-bitmap ===" |
| 183 | echo |
| 184 | |
| 185 | IMG="driver=nbd,export=n2,server.type=unix,server.path=$SOCK_DIR/nbd" |
| 186 | $QEMU_IMG map --output=json --image-opts \ |
| 187 | "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map |
| 188 | |
| 189 | echo |
| 190 | echo "=== Check bitmap taken from another node ===" |
| 191 | echo |
| 192 | |
| 193 | IMG="driver=nbd,export=n3,server.type=unix,server.path=$SOCK_DIR/nbd" |
| 194 | $QEMU_IMG map --output=json --image-opts \ |
| 195 | "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b3" | _filter_qemu_img_map |
| 196 | |
| 197 | echo |
| 198 | echo "=== End qemu NBD server ===" |
| 199 | echo |
| 200 | |
| 201 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-remove", |
| 202 | "arguments":{"name":"n"}}' "return" |
| 203 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-remove", |
| 204 | "arguments":{"name":"n2"}}' "return" |
| 205 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-remove", |
| 206 | "arguments":{"name":"n2"}}' "error" # Attempt duplicate clean |
| 207 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-stop"}' "return" |
| 208 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"nbd-server-stop"}' "error" # Again |
| 209 | |
| 210 | done |
| 211 | |
| 212 | _send_qemu_cmd $QEMU_HANDLE '{"execute":"quit"}' "return" |
| 213 | wait=yes _cleanup_qemu |
| 214 | |
| 215 | echo |
| 216 | echo "=== Use qemu-nbd as server ===" |
| 217 | echo |
| 218 | |
| 219 | nbd_server_start_unix_socket -r -f $IMGFMT -B b "$TEST_IMG" |
| 220 | IMG="driver=nbd,server.type=unix,server.path=$nbd_unix_socket" |
| 221 | $QEMU_IMG map --output=json --image-opts \ |
| 222 | "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b" | _filter_qemu_img_map |
| 223 | |
| 224 | nbd_server_start_unix_socket -f $IMGFMT -B b2 "$TEST_IMG" |
| 225 | IMG="driver=nbd,server.type=unix,server.path=$nbd_unix_socket" |
| 226 | $QEMU_IMG map --output=json --image-opts --max-length=12345 \ |
| 227 | "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map |
| 228 | $QEMU_IMG map --output=json --image-opts --start-offset=12345 \ |
| 229 | "$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map |
| 230 | |
| 231 | # success, all done |
| 232 | echo '*** done' |
| 233 | rm -f $seq.full |
| 234 | status=0 |