Philippe Mathieu-Daudé | 11a82d1 | 2019-03-07 15:58:38 +0100 | [diff] [blame] | 1 | #!/usr/bin/env bash |
Max Reitz | 097b500 | 2015-09-09 18:09:47 +0200 | [diff] [blame] | 2 | # |
| 3 | # General test case for qcow2's image check |
| 4 | # |
| 5 | # Copyright (C) 2015 Red Hat, Inc. |
| 6 | # |
| 7 | # This program is free software; you can redistribute it and/or modify |
| 8 | # it under the terms of the GNU General Public License as published by |
| 9 | # the Free Software Foundation; either version 2 of the License, or |
| 10 | # (at your option) any later version. |
| 11 | # |
| 12 | # This program is distributed in the hope that it will be useful, |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | # GNU General Public License for more details. |
| 16 | # |
| 17 | # You should have received a copy of the GNU General Public License |
| 18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 | # |
| 20 | |
| 21 | # creator |
| 22 | owner=mreitz@redhat.com |
| 23 | |
| 24 | seq="$(basename $0)" |
| 25 | echo "QA output created by $seq" |
| 26 | |
Max Reitz | 097b500 | 2015-09-09 18:09:47 +0200 | [diff] [blame] | 27 | status=1 # failure is the default! |
| 28 | |
| 29 | _cleanup() |
| 30 | { |
| 31 | _cleanup_test_img |
| 32 | } |
| 33 | trap "_cleanup; exit \$status" 0 1 2 3 15 |
| 34 | |
| 35 | # get standard environment, filters and checks |
| 36 | . ./common.rc |
| 37 | . ./common.filter |
| 38 | |
Max Reitz | e696f33 | 2019-11-07 17:36:47 +0100 | [diff] [blame] | 39 | # This tests qcow2-specific low-level functionality |
Max Reitz | 097b500 | 2015-09-09 18:09:47 +0200 | [diff] [blame] | 40 | _supported_fmt qcow2 |
| 41 | _supported_proto file |
| 42 | _supported_os Linux |
Max Reitz | 3be2024 | 2019-11-07 17:37:07 +0100 | [diff] [blame] | 43 | # With an external data file, data clusters are not refcounted |
| 44 | # (and so qemu-img check does not check their refcount) |
| 45 | _unsupported_imgopts data_file |
Max Reitz | 097b500 | 2015-09-09 18:09:47 +0200 | [diff] [blame] | 46 | |
| 47 | echo |
| 48 | echo '=== Check on an image with a multiple of 2^32 clusters ===' |
| 49 | echo |
| 50 | |
Max Reitz | 407fb56 | 2019-11-07 17:36:57 +0100 | [diff] [blame] | 51 | _make_test_img -o "cluster_size=512" 512 |
Max Reitz | 097b500 | 2015-09-09 18:09:47 +0200 | [diff] [blame] | 52 | |
| 53 | # Allocate L2 table |
| 54 | $QEMU_IO -c 'write 0 512' "$TEST_IMG" | _filter_qemu_io |
| 55 | |
| 56 | # Put the data cluster at a multiple of 2 TB, resulting in the image apparently |
| 57 | # having a multiple of 2^32 clusters |
| 58 | # (To be more specific: It is at 32 PB) |
Vladimir Sementsov-Ogievskiy | a5fff8d | 2019-02-27 16:14:30 +0300 | [diff] [blame] | 59 | poke_file "$TEST_IMG" $((2048 + 8)) "\x00\x80\x00\x00\x00\x00\x00\x00" |
Max Reitz | 097b500 | 2015-09-09 18:09:47 +0200 | [diff] [blame] | 60 | |
| 61 | # An offset of 32 PB results in qemu-img check having to allocate an in-memory |
Vladimir Sementsov-Ogievskiy | a5fff8d | 2019-02-27 16:14:30 +0300 | [diff] [blame] | 62 | # refcount table of 128 TB (16 bit refcounts, 512 byte clusters), if qemu-img |
| 63 | # don't check that referenced data cluster is far beyond the end of file. |
| 64 | # But starting from 4.0, qemu-img does this check, and instead of "Cannot |
| 65 | # allocate memory", we have an error showing that l2 entry is invalid. |
Max Reitz | 097b500 | 2015-09-09 18:09:47 +0200 | [diff] [blame] | 66 | _check_test_img |
| 67 | |
| 68 | # success, all done |
| 69 | echo "*** done" |
| 70 | rm -f $seq.full |
| 71 | status=0 |