tests/qemu-iotests/081

   1 #!/usr/bin/env bash
   2 # group: rw quick
   3 #
   4 # Test Quorum block driver
   5 #
   6 # Copyright (C) 2013 Nodalink, SARL.
   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 # creator
  23 owner=benoit@irqsave.net
  24
  25 seq=`basename $0`
  26 echo "QA output created by $seq"
  27
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32     _rm_test_img "$TEST_DIR/1.raw"
  33     _rm_test_img "$TEST_DIR/2.raw"
  34     _rm_test_img "$TEST_DIR/3.raw"
  35 }
  36 trap "_cleanup; exit \$status" 0 1 2 3 15
  37
  38 # get standard environment, filters and checks
  39 . ./common.rc
  40 . ./common.filter
  41
  42 _supported_fmt raw
  43 _supported_proto file
  44 _supported_os Linux
  45 _require_drivers quorum
  46 _require_devices virtio-scsi
  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 "$@" 2>&1 | _filter_testdir | _filter_imgfmt | _filter_qemu \
  58                           | _filter_qmp | _filter_qemu_io \
  59                           | _filter_generated_node_ids
  60 }
  61
  62 quorum="driver=raw,file.driver=quorum,file.vote-threshold=2"
  63 quorum="$quorum,file.children.0.file.filename=$TEST_DIR/1.raw"
  64 quorum="$quorum,file.children.1.file.filename=$TEST_DIR/2.raw"
  65 quorum="$quorum,file.children.2.file.filename=$TEST_DIR/3.raw"
  66 quorum="$quorum,file.children.0.driver=raw"
  67 quorum="$quorum,file.children.1.driver=raw"
  68 quorum="$quorum,file.children.2.driver=raw"
  69
  70 echo
  71 echo "== creating quorum files =="
  72
  73 size=10M
  74
  75 TEST_IMG="$TEST_DIR/1.raw" _make_test_img $size
  76 TEST_IMG="$TEST_DIR/2.raw" _make_test_img $size
  77 TEST_IMG="$TEST_DIR/3.raw" _make_test_img $size
  78
  79 echo
  80 echo "== writing images =="
  81
  82 $QEMU_IO -c "open -o $quorum" -c "write -P 0x32 0 $size" | _filter_qemu_io
  83
  84 echo
  85 echo "== checking quorum write =="
  86
  87 $QEMU_IO -c "read -P 0x32 0 $size" "$TEST_DIR/1.raw" | _filter_qemu_io
  88 $QEMU_IO -c "read -P 0x32 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
  89 $QEMU_IO -c "read -P 0x32 0 $size" "$TEST_DIR/3.raw" | _filter_qemu_io
  90
  91 echo
  92 echo "== corrupting image =="
  93
  94 $QEMU_IO -c "write -P 0x42 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
  95
  96 echo
  97 echo "== checking quorum correction =="
  98
  99 $QEMU_IO -c "open -o $quorum" -c "read -P 0x32 0 $size" | _filter_qemu_io
 100
 101 echo
 102 echo "== checking mixed reference/option specification =="
 103
 104 run_qemu <<EOF
 105 { "execute": "qmp_capabilities" }
 106 { "execute": "blockdev-add",
 107     "arguments": {
 108         "node-name": "drive2",
 109         "driver": "$IMGFMT",
 110         "file": {
 111             "driver": "file",
 112             "filename": "$TEST_DIR/2.raw"
 113         }
 114     }
 115 }
 116 { "execute": "blockdev-add",
 117     "arguments": {
 118         "driver": "quorum",
 119         "node-name": "drive0-quorum",
 120         "vote-threshold": 2,
 121         "children": [
 122             {
 123                 "driver": "$IMGFMT",
 124                 "file": {
 125                     "driver": "file",
 126                     "filename": "$TEST_DIR/1.raw"
 127                 }
 128             },
 129             "drive2",
 130             {
 131                 "driver": "$IMGFMT",
 132                 "file": {
 133                     "driver": "file",
 134                     "filename": "$TEST_DIR/3.raw"
 135                 }
 136             }
 137         ]
 138     }
 139 }
 140 { "execute": "human-monitor-command",
 141     "arguments": {
 142         "command-line": 'qemu-io drive0-quorum "read -P 0x32 0 $size"'
 143     }
 144 }
 145 { "execute": "quit" }
 146 EOF
 147
 148 echo
 149 echo "== using quorum rewrite corrupted mode =="
 150
 151 quorum="$quorum,file.rewrite-corrupted=on"
 152
 153 $QEMU_IO -c "open -o $quorum" -c "read -P 0x32 0 $size" | _filter_qemu_io
 154
 155 echo
 156 echo "== checking that quorum has corrected the corrupted file =="
 157
 158 $QEMU_IO -c "read -P 0x32 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
 159
 160 echo
 161 echo "== using quorum rewrite corrupted mode without WRITE permission =="
 162
 163 # The same as above, but this time, do it on a quorum node whose only
 164 # parent will not take the WRITE permission
 165
 166 echo '-- corrupting --'
 167 # Only corrupt a portion: The guest device (scsi-hd on virtio-scsi)
 168 # will read some data (looking for a partition table to guess the
 169 # disk's geometry), which would trigger a quorum mismatch if the
 170 # beginning of the image was corrupted.  The subsequent
 171 # QUORUM_REPORT_BAD event would be suppressed (because at that point,
 172 # there cannot have been a qmp_capabilities on the monitor).  Because
 173 # that event is rate-limited, the next QUORUM_REPORT_BAD that happens
 174 # thanks to our qemu-io read (which should trigger a mismatch) would
 175 # then be delayed past the VM quit and not appear in the output.
 176 # So we keep the first 1M intact to see a QUORUM_REPORT_BAD resulting
 177 # from the qemu-io invocation.
 178 $QEMU_IO -c "write -P 0x42 1M 1M" "$TEST_DIR/2.raw" | _filter_qemu_io
 179
 180 # Fix the corruption (on a read-only quorum node, i.e. without taking
 181 # the WRITE permission on it -- its child nodes need to be R/W OTOH,
 182 # so that rewrite-corrupted works)
 183 echo
 184 echo '-- running quorum --'
 185 run_qemu \
 186     -blockdev file,node-name=file1,filename="$TEST_DIR/1.raw" \
 187     -blockdev file,node-name=file2,filename="$TEST_DIR/2.raw" \
 188     -blockdev file,node-name=file3,filename="$TEST_DIR/3.raw" \
 189     -blockdev '{
 190         "driver": "quorum",
 191         "node-name": "quorum",
 192         "read-only": true,
 193         "vote-threshold": 2,
 194         "rewrite-corrupted": true,
 195         "children": [ "file1", "file2", "file3" ]
 196     }' \
 197     -device virtio-scsi,id=scsi \
 198     -device scsi-hd,id=quorum-drive,bus=scsi.0,drive=quorum \
 199     <<EOF
 200 { "execute": "qmp_capabilities" }
 201 {
 202     "execute": "human-monitor-command",
 203     "arguments": {
 204         "command-line": 'qemu-io -d quorum-drive "read -P 0x32 0 $size"'
 205     }
 206 }
 207 { "execute": "quit" }
 208 EOF
 209
 210 echo '-- checking that the image has been corrected --'
 211 $QEMU_IO -c "read -P 0x32 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
 212
 213 echo
 214 echo "== breaking quorum =="
 215
 216 $QEMU_IO -c "write -P 0x41 0 $size" "$TEST_DIR/1.raw" | _filter_qemu_io
 217 $QEMU_IO -c "write -P 0x42 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
 218
 219 echo
 220 echo "== checking that quorum is broken =="
 221
 222 $QEMU_IO -c "open -o $quorum" -c "read -P 0x32 0 $size" | _filter_qemu_io
 223
 224 echo
 225 echo "== checking the blkverify mode with broken content =="
 226
 227 quorum="driver=raw,file.driver=quorum,file.vote-threshold=2,file.blkverify=on"
 228 quorum="$quorum,file.children.0.file.filename=$TEST_DIR/1.raw"
 229 quorum="$quorum,file.children.1.file.filename=$TEST_DIR/2.raw"
 230 quorum="$quorum,file.children.0.driver=raw"
 231 quorum="$quorum,file.children.1.driver=raw"
 232
 233 $QEMU_IO -c "open -o $quorum" -c "read -P 0x32 0 $size" | _filter_qemu_io
 234
 235 echo
 236 echo "== writing the same data to both files =="
 237
 238 $QEMU_IO -c "write -P 0x32 0 $size" "$TEST_DIR/1.raw" | _filter_qemu_io
 239 $QEMU_IO -c "write -P 0x32 0 $size" "$TEST_DIR/2.raw" | _filter_qemu_io
 240
 241 echo
 242 echo "== checking the blkverify mode with valid content =="
 243
 244 $QEMU_IO -c "open -o $quorum" -c "read -P 0x32 0 $size" | _filter_qemu_io
 245
 246 echo
 247 echo "== checking the blkverify mode with invalid settings =="
 248
 249 quorum="$quorum,file.children.2.file.filename=$TEST_DIR/3.raw"
 250 quorum="$quorum,file.children.2.driver=raw"
 251
 252 $QEMU_IO -c "open -o $quorum" | _filter_qemu_io
 253
 254 echo
 255 echo "== dynamically adding a child to a quorum =="
 256
 257 for verify in false true; do
 258     run_qemu <<EOF
 259     { "execute": "qmp_capabilities" }
 260     { "execute": "blockdev-add",
 261         "arguments": {
 262             "driver": "quorum",
 263             "node-name": "drive0-quorum",
 264             "vote-threshold": 2,
 265             "blkverify": ${verify},
 266             "children": [
 267                 {
 268                     "driver": "$IMGFMT",
 269                     "file": {
 270                         "driver": "file",
 271                         "filename": "$TEST_DIR/1.raw"
 272                     }
 273                 },
 274                 {
 275                     "driver": "$IMGFMT",
 276                     "file": {
 277                         "driver": "file",
 278                         "filename": "$TEST_DIR/2.raw"
 279                     }
 280                 }
 281             ]
 282         }
 283     }
 284     { "execute": "blockdev-add",
 285         "arguments": {
 286             "node-name": "drive3",
 287             "driver": "$IMGFMT",
 288             "file": {
 289                 "driver": "file",
 290                 "filename": "$TEST_DIR/2.raw"
 291             }
 292         }
 293     }
 294     { "execute": "x-blockdev-change",
 295       "arguments": { "parent": "drive0-quorum",
 296                      "node": "drive3" } }
 297     { "execute": "quit" }
 298 EOF
 299 done
 300
 301 echo
 302 echo "== dynamically removing a child from a quorum =="
 303
 304 for verify in false true; do
 305     for vote_threshold in 1 2; do
 306         run_qemu <<EOF
 307         { "execute": "qmp_capabilities" }
 308         { "execute": "blockdev-add",
 309             "arguments": {
 310                 "driver": "quorum",
 311                 "node-name": "drive0-quorum",
 312                 "vote-threshold": ${vote_threshold},
 313                 "blkverify": ${verify},
 314                 "children": [
 315                     {
 316                         "driver": "$IMGFMT",
 317                         "file": {
 318                             "driver": "file",
 319                             "filename": "$TEST_DIR/1.raw"
 320                         }
 321                     },
 322                     {
 323                         "driver": "$IMGFMT",
 324                         "file": {
 325                             "driver": "file",
 326                             "filename": "$TEST_DIR/2.raw"
 327                         }
 328                     }
 329                 ]
 330             }
 331         }
 332         { "execute": "x-blockdev-change",
 333           "arguments": { "parent": "drive0-quorum",
 334                          "child": "children.1" } }
 335         { "execute": "quit" }
 336 EOF
 337     done
 338 done
 339
 340 # success, all done
 341 echo "*** done"
 342 rm -f $seq.full
 343 status=0