| #!/usr/bin/env bash |
| # group: rw auto quick |
| # |
| # Test invalid backing file format in qcow2 images |
| # |
| # 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" |
| |
| 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 generic |
| # At least OpenBSD doesn't seem to have truncate |
| _supported_os Linux |
| # qcow2.py does not work too well with external data files |
| _unsupported_imgopts data_file |
| |
| # Older qemu-img could set up backing file without backing format; modern |
| # qemu can't but we can use qcow2.py to simulate older files. |
| truncate -s $((64 * 1024 * 1024)) "$TEST_IMG.orig" |
| _make_test_img -b "$TEST_IMG.orig" -F raw 64M |
| $PYTHON qcow2.py "$TEST_IMG" del-header-ext 0xE2792ACA |
| |
| TEST_IMG="$TEST_IMG.base" _make_test_img 64M |
| $QEMU_IMG convert -O qcow2 -B "$TEST_IMG.orig" "$TEST_IMG.orig" "$TEST_IMG" |
| _make_test_img -b "$TEST_IMG.base" -F $IMGFMT 64M |
| _make_test_img -u -b "$TEST_IMG.base" -F $IMGFMT 64M |
| |
| # Set an invalid backing file format |
| $PYTHON qcow2.py "$TEST_IMG" add-header-ext 0xE2792ACA "foo" |
| _img_info |
| |
| # Try opening the image. Should fail (and not probe) in the first case, but |
| # overriding the backing file format should be possible. |
| $QEMU_IO -c "open $TEST_IMG" -c "read 0 4k" 2>&1 | _filter_qemu_io | _filter_testdir |
| $QEMU_IO -c "open -o backing.driver=$IMGFMT $TEST_IMG" -c "read 0 4k" | _filter_qemu_io |
| |
| # Rebase the image, to show that backing format is required. |
| ($QEMU_IMG rebase -u -b "$TEST_IMG.base" "$TEST_IMG" 2>&1 && echo "unexpected pass") | _filter_testdir |
| $QEMU_IMG rebase -u -b "$TEST_IMG.base" -F $IMGFMT "$TEST_IMG" |
| $QEMU_IO -c "open $TEST_IMG" -c "read 0 4k" 2>&1 | _filter_qemu_io | _filter_testdir |
| |
| # success, all done |
| echo '*** done' |
| rm -f $seq.full |
| status=0 |
