qemu-e2k/tests/qemu-iotests/082
John Snow 6e6e55f5c2 qemu-img: Check for backing image if specified during create
Or, rather, force the open of a backing image if one was specified
for creation. Using a similar -unsafe option as rebase, allow qemu-img
to ignore the backing file validation if possible.

It may not always be possible, as in the existing case when a filesize
for the new image was not specified.

This is accomplished by shifting around the conditionals in
bdrv_img_create, such that a backing file is always opened unless we
provide BDRV_O_NO_BACKING. qemu-img is adjusted to pass this new flag
when -u is provided to create.

Sorry for the heinous looking diffstat, but it's mostly whitespace.

Inspired by: https://bugzilla.redhat.com/show_bug.cgi?id=1213786

Signed-off-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-07-18 15:27:37 +02:00

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#!/bin/bash
#
# Test qemu-img command line parsing
#
# Copyright (C) 2014 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# creator
owner=kwolf@redhat.com
seq=`basename $0`
echo "QA output created by $seq"
here=`pwd`
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt qcow2
_supported_proto file nfs
_supported_os Linux
function run_qemu_img()
{
echo
echo Testing: "$@" | _filter_testdir
"$QEMU_IMG" "$@" 2>&1 | _filter_testdir
}
size=128M
echo
echo === create: Options specified more than once ===
# Last -f should win
run_qemu_img create -f foo -f $IMGFMT "$TEST_IMG" $size
_img_info
# Multiple -o should be merged
run_qemu_img create -f $IMGFMT -o cluster_size=4k -o lazy_refcounts=on "$TEST_IMG" $size
_img_info --format-specific
# If the same -o key is specified more than once, the last one wins
run_qemu_img create -f $IMGFMT -o cluster_size=4k -o lazy_refcounts=on -o cluster_size=8k "$TEST_IMG" $size
_img_info --format-specific
run_qemu_img create -f $IMGFMT -o cluster_size=4k,cluster_size=8k "$TEST_IMG" $size
_img_info
echo
echo === create: help for -o ===
# Adding the help option to a command without other -o options
run_qemu_img create -f $IMGFMT -o help "$TEST_IMG" $size
run_qemu_img create -f $IMGFMT -o \? "$TEST_IMG" $size
# Adding the help option to the same -o option
run_qemu_img create -f $IMGFMT -o cluster_size=4k,help "$TEST_IMG" $size
run_qemu_img create -f $IMGFMT -o cluster_size=4k,\? "$TEST_IMG" $size
run_qemu_img create -f $IMGFMT -o help,cluster_size=4k "$TEST_IMG" $size
run_qemu_img create -f $IMGFMT -o \?,cluster_size=4k "$TEST_IMG" $size
# Adding the help option to a separate -o option
run_qemu_img create -f $IMGFMT -o cluster_size=4k -o help "$TEST_IMG" $size
run_qemu_img create -f $IMGFMT -o cluster_size=4k -o \? "$TEST_IMG" $size
# Looks like a help option, but is part of the backing file name
run_qemu_img create -f $IMGFMT -u -o backing_file="$TEST_IMG",,help "$TEST_IMG" $size
run_qemu_img create -f $IMGFMT -u -o backing_file="$TEST_IMG",,\? "$TEST_IMG" $size
# Try to trick qemu-img into creating escaped commas
run_qemu_img create -f $IMGFMT -o backing_file="$TEST_IMG", -o help "$TEST_IMG" $size
run_qemu_img create -f $IMGFMT -o backing_file="$TEST_IMG" -o ,help "$TEST_IMG" $size
run_qemu_img create -f $IMGFMT -o backing_file="$TEST_IMG" -o ,, -o help "$TEST_IMG" $size
# Leave out everything that isn't needed
run_qemu_img create -f $IMGFMT -o help
run_qemu_img create -o help
echo
echo === convert: Options specified more than once ===
# We need a valid source image
run_qemu_img create -f $IMGFMT "$TEST_IMG" $size
# Last -f should win
run_qemu_img convert -f foo -f $IMGFMT "$TEST_IMG" "$TEST_IMG".base
TEST_IMG="${TEST_IMG}.base" _img_info
# Last -O should win
run_qemu_img convert -O foo -O $IMGFMT "$TEST_IMG" "$TEST_IMG".base
TEST_IMG="${TEST_IMG}.base" _img_info
# Multiple -o should be merged
run_qemu_img convert -O $IMGFMT -o cluster_size=4k -o lazy_refcounts=on "$TEST_IMG" "$TEST_IMG".base
TEST_IMG="${TEST_IMG}.base" _img_info --format-specific
# If the same -o key is specified more than once, the last one wins
run_qemu_img convert -O $IMGFMT -o cluster_size=4k -o lazy_refcounts=on -o cluster_size=8k "$TEST_IMG" "$TEST_IMG".base
TEST_IMG="${TEST_IMG}.base" _img_info --format-specific
run_qemu_img convert -O $IMGFMT -o cluster_size=4k,cluster_size=8k "$TEST_IMG" "$TEST_IMG".base
TEST_IMG="${TEST_IMG}.base" _img_info
echo
echo === convert: help for -o ===
# Adding the help option to a command without other -o options
run_qemu_img convert -O $IMGFMT -o help "$TEST_IMG" "$TEST_IMG".base
run_qemu_img convert -O $IMGFMT -o \? "$TEST_IMG" "$TEST_IMG".base
# Adding the help option to the same -o option
run_qemu_img convert -O $IMGFMT -o cluster_size=4k,help "$TEST_IMG" "$TEST_IMG".base
run_qemu_img convert -O $IMGFMT -o cluster_size=4k,\? "$TEST_IMG" "$TEST_IMG".base
run_qemu_img convert -O $IMGFMT -o help,cluster_size=4k "$TEST_IMG" "$TEST_IMG".base
run_qemu_img convert -O $IMGFMT -o \?,cluster_size=4k "$TEST_IMG" "$TEST_IMG".base
# Adding the help option to a separate -o option
run_qemu_img convert -O $IMGFMT -o cluster_size=4k -o help "$TEST_IMG" "$TEST_IMG".base
run_qemu_img convert -O $IMGFMT -o cluster_size=4k -o \? "$TEST_IMG" "$TEST_IMG".base
# Looks like a help option, but is part of the backing file name
run_qemu_img convert -O $IMGFMT -o backing_file="$TEST_IMG",,help "$TEST_IMG" "$TEST_IMG".base
run_qemu_img convert -O $IMGFMT -o backing_file="$TEST_IMG",,\? "$TEST_IMG" "$TEST_IMG".base
# Try to trick qemu-img into creating escaped commas
run_qemu_img convert -O $IMGFMT -o backing_file="$TEST_IMG", -o help "$TEST_IMG" "$TEST_IMG".base
run_qemu_img convert -O $IMGFMT -o backing_file="$TEST_IMG" -o ,help "$TEST_IMG" "$TEST_IMG".base
run_qemu_img convert -O $IMGFMT -o backing_file="$TEST_IMG" -o ,, -o help "$TEST_IMG" "$TEST_IMG".base
# Leave out everything that isn't needed
run_qemu_img convert -O $IMGFMT -o help
run_qemu_img convert -o help
echo
echo === amend: Options specified more than once ===
# Last -f should win
run_qemu_img amend -f foo -f $IMGFMT -o lazy_refcounts=on "$TEST_IMG"
_img_info --format-specific
# Multiple -o should be merged
run_qemu_img amend -f $IMGFMT -o size=130M -o lazy_refcounts=off "$TEST_IMG"
_img_info --format-specific
# If the same -o key is specified more than once, the last one wins
run_qemu_img amend -f $IMGFMT -o size=8M -o lazy_refcounts=on -o size=132M "$TEST_IMG"
_img_info --format-specific
run_qemu_img amend -f $IMGFMT -o size=4M,size=148M "$TEST_IMG"
_img_info
echo
echo === amend: help for -o ===
# Adding the help option to a command without other -o options
run_qemu_img amend -f $IMGFMT -o help "$TEST_IMG"
run_qemu_img amend -f $IMGFMT -o \? "$TEST_IMG"
# Adding the help option to the same -o option
run_qemu_img amend -f $IMGFMT -o cluster_size=4k,help "$TEST_IMG"
run_qemu_img amend -f $IMGFMT -o cluster_size=4k,\? "$TEST_IMG"
run_qemu_img amend -f $IMGFMT -o help,cluster_size=4k "$TEST_IMG"
run_qemu_img amend -f $IMGFMT -o \?,cluster_size=4k "$TEST_IMG"
# Adding the help option to a separate -o option
run_qemu_img amend -f $IMGFMT -o cluster_size=4k -o help "$TEST_IMG"
run_qemu_img amend -f $IMGFMT -o cluster_size=4k -o \? "$TEST_IMG"
# Looks like a help option, but is part of the backing file name
run_qemu_img amend -f $IMGFMT -o backing_file="$TEST_IMG",,help "$TEST_IMG"
run_qemu_img rebase -u -b "" -f $IMGFMT "$TEST_IMG"
run_qemu_img amend -f $IMGFMT -o backing_file="$TEST_IMG",,\? "$TEST_IMG"
run_qemu_img rebase -u -b "" -f $IMGFMT "$TEST_IMG"
# Try to trick qemu-img into creating escaped commas
run_qemu_img amend -f $IMGFMT -o backing_file="$TEST_IMG", -o help "$TEST_IMG"
run_qemu_img amend -f $IMGFMT -o backing_file="$TEST_IMG" -o ,help "$TEST_IMG"
run_qemu_img amend -f $IMGFMT -o backing_file="$TEST_IMG" -o ,, -o help "$TEST_IMG"
# Leave out everything that isn't needed
run_qemu_img amend -f $IMGFMT -o help
run_qemu_img convert -o help
# success, all done
echo "*** done"
rm -f $seq.full
status=0