b998875dcf
Since commit 9fd3171a, BDRV_O_SNAPSHOT uses an option QDict to specify
the originally requested image as the backing file of the newly created
temporary snapshot. This means that the filename is stored in
"file.filename", which is an option that is not parsed for protocol
names. Therefore things like -drive file=nbd:localhost:10809 were
broken because it looked for a local file with the literal name
'nbd:localhost:10809'.
This patch changes the way BDRV_O_SNAPSHOT works once again. We now open
the originally requested image as normal, and then do a similar
operation as for live snapshots to put the temporary snapshot on top.
This way, both driver specific options and parsed filenames work.
As a nice side effect, this results in code movement to factor
bdrv_append_temp_snapshot() out. This is a good preparation for moving
its call to drive_init() and friends eventually.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
240 lines
7.3 KiB
Bash
Executable File
240 lines
7.3 KiB
Bash
Executable File
#!/bin/bash
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#
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# Test command line configuration of block devices and driver-specific options
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#
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# Copyright (C) 2013 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=kwolf@redhat.com
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seq=`basename $0`
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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_supported_fmt qcow2
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_supported_proto file
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_supported_os Linux
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function do_run_qemu()
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{
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echo Testing: "$@"
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(
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if ! test -t 0; then
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while read cmd; do
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echo $cmd
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done
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fi
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echo quit
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) | $QEMU -nographic -monitor stdio -serial none "$@"
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echo
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}
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function run_qemu()
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{
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do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu
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}
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size=128M
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_make_test_img $size
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cp "$TEST_IMG" "$TEST_IMG.orig"
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mv "$TEST_IMG" "$TEST_IMG.base"
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_make_test_img -b "$TEST_IMG.base" $size
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echo
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echo === Unknown option ===
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echo
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run_qemu -drive file="$TEST_IMG",format=qcow2,unknown_opt=
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run_qemu -drive file="$TEST_IMG",format=qcow2,unknown_opt=on
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run_qemu -drive file="$TEST_IMG",format=qcow2,unknown_opt=1234
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run_qemu -drive file="$TEST_IMG",format=qcow2,unknown_opt=foo
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echo
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echo === Unknown protocol option ===
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echo
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run_qemu -drive file="$TEST_IMG",format=qcow2,file.unknown_opt=
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run_qemu -drive file="$TEST_IMG",format=qcow2,file.unknown_opt=on
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run_qemu -drive file="$TEST_IMG",format=qcow2,file.unknown_opt=1234
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run_qemu -drive file="$TEST_IMG",format=qcow2,file.unknown_opt=foo
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echo
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echo === Invalid format ===
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echo
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run_qemu -drive file="$TEST_IMG",format=foo
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run_qemu -drive file="$TEST_IMG",driver=foo
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echo
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echo === Overriding backing file ===
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echo
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echo "info block" | run_qemu -drive file="$TEST_IMG",driver=qcow2,backing.file.filename="$TEST_IMG.orig" -nodefaults
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echo
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echo === Enable and disable lazy refcounting on the command line, plus some invalid values ===
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echo
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run_qemu -drive file="$TEST_IMG",format=qcow2,lazy-refcounts=on
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run_qemu -drive file="$TEST_IMG",format=qcow2,lazy-refcounts=off
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run_qemu -drive file="$TEST_IMG",format=qcow2,lazy-refcounts=
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run_qemu -drive file="$TEST_IMG",format=qcow2,lazy-refcounts=42
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run_qemu -drive file="$TEST_IMG",format=qcow2,lazy-refcounts=foo
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echo
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echo === With version 2 images enabling lazy refcounts must fail ===
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echo
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_make_test_img -ocompat=0.10 $size
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run_qemu -drive file="$TEST_IMG",format=qcow2,lazy-refcounts=on
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run_qemu -drive file="$TEST_IMG",format=qcow2,lazy-refcounts=off
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echo
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echo === No medium ===
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echo
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run_qemu -drive if=floppy
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run_qemu -drive if=ide,media=cdrom
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run_qemu -drive if=scsi,media=cdrom
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run_qemu -drive if=ide
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run_qemu -drive if=virtio
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run_qemu -drive if=scsi
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run_qemu -drive if=none,id=disk -device ide-cd,drive=disk
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run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-cd,drive=disk
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run_qemu -drive if=none,id=disk -device ide-drive,drive=disk
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run_qemu -drive if=none,id=disk -device ide-hd,drive=disk
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run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-disk,drive=disk
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run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-hd,drive=disk
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echo
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echo === Read-only ===
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echo
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run_qemu -drive file="$TEST_IMG",if=floppy,readonly=on
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run_qemu -drive file="$TEST_IMG",if=ide,media=cdrom,readonly=on
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run_qemu -drive file="$TEST_IMG",if=scsi,media=cdrom,readonly=on
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run_qemu -drive file="$TEST_IMG",if=ide,readonly=on
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run_qemu -drive file="$TEST_IMG",if=virtio,readonly=on
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run_qemu -drive file="$TEST_IMG",if=scsi,readonly=on
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run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device ide-cd,drive=disk
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run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device lsi53c895a -device scsi-cd,drive=disk
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run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device ide-drive,drive=disk
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run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device ide-hd,drive=disk
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run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device lsi53c895a -device scsi-disk,drive=disk
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run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device lsi53c895a -device scsi-hd,drive=disk
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echo
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echo === Cache modes ===
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echo
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# Cannot use the test image because cache=none might not work on the host FS
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# Use cdrom so that we won't get errors about missing media
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run_qemu -drive media=cdrom,cache=none
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run_qemu -drive media=cdrom,cache=directsync
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run_qemu -drive media=cdrom,cache=writeback
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run_qemu -drive media=cdrom,cache=writethrough
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run_qemu -drive media=cdrom,cache=unsafe
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run_qemu -drive media=cdrom,cache=invalid_value
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echo
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echo === Specifying the protocol layer ===
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echo
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run_qemu -drive file="$TEST_IMG",file.driver=file
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run_qemu -drive file="$TEST_IMG",file.driver=qcow2
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echo
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echo === Leaving out required options ===
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echo
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run_qemu -drive driver=file
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run_qemu -drive driver=nbd
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run_qemu -drive driver=raw
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run_qemu -drive file.driver=file
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run_qemu -drive file.driver=nbd
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run_qemu -drive file.driver=raw
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run_qemu -drive foo=bar
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echo
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echo === Parsing protocol from file name ===
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echo
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# Protocol strings are supposed to be parsed from traditional option strings,
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# but not when using driver-specific options. We can distinguish them by the
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# error message for non-existing files.
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run_qemu -hda foo:bar
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run_qemu -drive file=foo:bar
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run_qemu -drive file.filename=foo:bar
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run_qemu -hda "file:$TEST_IMG"
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run_qemu -drive file="file:$TEST_IMG"
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run_qemu -drive file.filename="file:$TEST_IMG"
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echo
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echo === Snapshot mode ===
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echo
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$QEMU_IO -c "write -P 0x11 0 4k" "$TEST_IMG" | _filter_qemu_io
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echo 'qemu-io ide0-hd0 "write -P 0x22 0 4k"' | run_qemu -drive file="$TEST_IMG" -snapshot | _filter_qemu_io
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echo 'qemu-io ide0-hd0 "write -P 0x22 0 4k"' | run_qemu -drive file="$TEST_IMG",snapshot=on | _filter_qemu_io
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echo 'qemu-io ide0-hd0 "write -P 0x22 0 4k"' | run_qemu -drive file.filename="$TEST_IMG",driver=qcow2,snapshot=on | _filter_qemu_io
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echo 'qemu-io ide0-hd0 "write -P 0x22 0 4k"' | run_qemu -drive file.filename="$TEST_IMG",driver=qcow2 -snapshot | _filter_qemu_io
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echo 'qemu-io ide0-hd0 "write -P 0x22 0 4k"' | run_qemu -drive file="file:$TEST_IMG" -snapshot | _filter_qemu_io
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echo 'qemu-io ide0-hd0 "write -P 0x22 0 4k"' | run_qemu -drive file="file:$TEST_IMG",snapshot=on | _filter_qemu_io
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# Opening a read-only file r/w with snapshot=on
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chmod u-w "$TEST_IMG"
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echo 'qemu-io ide0-hd0 "write -P 0x22 0 4k"' | run_qemu -drive file="$TEST_IMG" -snapshot | _filter_qemu_io
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echo 'qemu-io ide0-hd0 "write -P 0x22 0 4k"' | run_qemu -drive file="$TEST_IMG",snapshot=on | _filter_qemu_io
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chmod u+w "$TEST_IMG"
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$QEMU_IO -c "read -P 0x11 0 4k" "$TEST_IMG" | _filter_qemu_io
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echo 'qemu-io ide0-hd0 "write -P 0x22 0 4k"' | run_qemu -drive file="$TEST_IMG",snapshot=off | _filter_qemu_io
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$QEMU_IO -c "read -P 0x22 0 4k" "$TEST_IMG" | _filter_qemu_io
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# success, all done
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echo "*** done"
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rm -f $seq.full
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status=0
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