| 1 | #!/usr/bin/env bash |
| 2 | # group: rw auto quick |
| 3 | # |
| 4 | # Test invalid backing file format in qcow2 images |
| 5 | # |
| 6 | # Copyright (C) 2014 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 | # creator |
| 23 | owner=kwolf@redhat.com |
| 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 | _cleanup_test_img |
| 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 | |
| 40 | _supported_fmt qcow2 |
| 41 | _supported_proto file |
| 42 | # At least OpenBSD doesn't seem to have truncate |
| 43 | _supported_os Linux |
| 44 | # qcow2.py does not work too well with external data files |
| 45 | _unsupported_imgopts data_file |
| 46 | |
| 47 | # Older qemu-img could set up backing file without backing format; modern |
| 48 | # qemu can't but we can use qcow2.py to simulate older files. |
| 49 | truncate -s $((64 * 1024 * 1024)) "$TEST_IMG.orig" |
| 50 | _make_test_img -b "$TEST_IMG.orig" -F raw 64M |
| 51 | $PYTHON qcow2.py "$TEST_IMG" del-header-ext 0xE2792ACA |
| 52 | |
| 53 | TEST_IMG="$TEST_IMG.base" _make_test_img 64M |
| 54 | $QEMU_IMG convert -O qcow2 -B "$TEST_IMG.orig" "$TEST_IMG.orig" "$TEST_IMG" |
| 55 | _make_test_img -b "$TEST_IMG.base" -F $IMGFMT 64M |
| 56 | _make_test_img -u -b "$TEST_IMG.base" -F $IMGFMT 64M |
| 57 | |
| 58 | # Set an invalid backing file format |
| 59 | $PYTHON qcow2.py "$TEST_IMG" add-header-ext 0xE2792ACA "foo" |
| 60 | _img_info |
| 61 | |
| 62 | # Try opening the image. Should fail (and not probe) in the first case, but |
| 63 | # overriding the backing file format should be possible. |
| 64 | $QEMU_IO -c "open $TEST_IMG" -c "read 0 4k" 2>&1 | _filter_qemu_io | _filter_testdir |
| 65 | $QEMU_IO -c "open -o backing.driver=$IMGFMT $TEST_IMG" -c "read 0 4k" | _filter_qemu_io |
| 66 | |
| 67 | # Rebase the image, to show that backing format is required. |
| 68 | ($QEMU_IMG rebase -u -b "$TEST_IMG.base" "$TEST_IMG" 2>&1 && echo "unexpected pass") | _filter_testdir |
| 69 | $QEMU_IMG rebase -u -b "$TEST_IMG.base" -F $IMGFMT "$TEST_IMG" |
| 70 | $QEMU_IO -c "open $TEST_IMG" -c "read 0 4k" 2>&1 | _filter_qemu_io | _filter_testdir |
| 71 | |
| 72 | # success, all done |
| 73 | echo '*** done' |
| 74 | rm -f $seq.full |
| 75 | status=0 |