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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 generic 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