From f394f1feb921d5a4b278e7ac95bdaa49e34a52f2 Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Thu, 16 Feb 2012 16:55:01 +0100 Subject: qemu-iotests: Test unknown qcow2 header extensions The immportant thing here is that header extensions don't get silently dropped when the header is rewritten, e.g. during a rebase. Signed-off-by: Kevin Wolf --- tests/qemu-iotests/031 | 72 +++++++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/031.out | 76 ++++++++++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/group | 1 + 3 files changed, 149 insertions(+) create mode 100755 tests/qemu-iotests/031 create mode 100644 tests/qemu-iotests/031.out (limited to 'tests') diff --git a/tests/qemu-iotests/031 b/tests/qemu-iotests/031 new file mode 100755 index 0000000000..6365f287e0 --- /dev/null +++ b/tests/qemu-iotests/031 @@ -0,0 +1,72 @@ +#!/bin/bash +# +# Test that all qcow2 header extensions survive a header rewrite +# +# Copyright (C) 2011 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 . +# + +# creator +owner=kwolf@redhat.com + +seq=`basename $0` +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +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 +. ./common.pattern + +# This tests qcow2-specific low-level functionality +_supported_fmt qcow2 +_supported_proto generic +_supported_os Linux + +CLUSTER_SIZE=65536 +echo +echo === Create image with unknown header extension === +echo +_make_test_img 64M +./qcow2.py $TEST_IMG add-header-ext 0x12345678 "This is a test header extension" +./qcow2.py $TEST_IMG dump-header +_check_test_img + +echo +echo === Rewrite header with no backing file === +echo +$QEMU_IMG rebase -u -b "" $TEST_IMG +./qcow2.py $TEST_IMG dump-header +_check_test_img + +echo +echo === Add a backing file and format === +echo +$QEMU_IMG rebase -u -b "/some/backing/file/path" -F host_device $TEST_IMG +./qcow2.py $TEST_IMG dump-header + +# success, all done +echo "*** done" +rm -f $seq.full +status=0 diff --git a/tests/qemu-iotests/031.out b/tests/qemu-iotests/031.out new file mode 100644 index 0000000000..0f1bf685f3 --- /dev/null +++ b/tests/qemu-iotests/031.out @@ -0,0 +1,76 @@ +QA output created by 031 + +=== Create image with unknown header extension === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 cluster_size=65536 +magic 0x514649fb +version 2 +backing_file_offset 0x0 +backing_file_size 0x0 +cluster_bits 16 +size 67108864 +crypt_method 0 +l1_size 1 +l1_table_offset 0x30000 +refcount_table_offset 0x10000 +refcount_table_clusters 1 +nb_snapshots 0 +snapshot_offset 0x0 + +Header extension: +magic 0x12345678 +length 31 +data 'This is a test header extension' + +No errors were found on the image. + +=== Rewrite header with no backing file === + +magic 0x514649fb +version 2 +backing_file_offset 0x0 +backing_file_size 0x0 +cluster_bits 16 +size 67108864 +crypt_method 0 +l1_size 1 +l1_table_offset 0x30000 +refcount_table_offset 0x10000 +refcount_table_clusters 1 +nb_snapshots 0 +snapshot_offset 0x0 + +Header extension: +magic 0x12345678 +length 31 +data 'This is a test header extension' + +No errors were found on the image. + +=== Add a backing file and format === + +magic 0x514649fb +version 2 +backing_file_offset 0x90 +backing_file_size 0x17 +cluster_bits 16 +size 67108864 +crypt_method 0 +l1_size 1 +l1_table_offset 0x30000 +refcount_table_offset 0x10000 +refcount_table_clusters 1 +nb_snapshots 0 +snapshot_offset 0x0 + +Header extension: +magic 0xe2792aca +length 11 +data 'host_device' + +Header extension: +magic 0x12345678 +length 31 +data 'This is a test header extension' + +*** done diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index b549f10f17..1742ede180 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -37,3 +37,4 @@ 028 rw backing auto 029 rw auto quick 030 rw auto +031 rw auto quick -- cgit v1.2.1