LXR qemu/tests/qemu-iotests/031

   1#!/usr/bin/env bash
   2# group: rw auto quick
   3#
   4# Test that all qcow2 header extensions survive a header rewrite
   5#
   6# Copyright (C) 2011 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
  23owner=kwolf@redhat.com
  24
  25seq=`basename $0`
  26echo "QA output created by $seq"
  27
  28status=1        # failure is the default!
  29
  30_cleanup()
  31{
  32        _cleanup_test_img
  33}
  34trap "_cleanup; exit \$status" 0 1 2 3 15
  35
  36# get standard environment, filters and checks
  37. ./common.rc
  38. ./common.filter
  39. ./common.pattern
  40
  41# This tests qcow2-specific low-level functionality
  42_supported_fmt qcow2
  43_supported_proto file fuse
  44# We want to test compat=0.10, which does not support external data
  45# files or refcount widths other than 16 or compression type
  46_unsupported_imgopts data_file compression_type \
  47    'refcount_bits=\([^1]\|.\([^6]\|$\)\)'
  48
  49CLUSTER_SIZE=65536
  50
  51# qcow2.py output depends on the exact options used, so override the command
  52# line here as an exception
  53for compat in "compat=0.10" "compat=1.1"; do
  54
  55    echo
  56    echo ===== Testing with -o $compat =====
  57    echo
  58    echo === Create image with unknown header extension ===
  59    echo
  60    _make_test_img -o $compat 64M
  61    $PYTHON qcow2.py "$TEST_IMG" add-header-ext 0x12345678 "This is a test header extension"
  62    _qcow2_dump_header
  63    _check_test_img
  64
  65    echo
  66    echo === Rewrite header with no backing file ===
  67    echo
  68    $QEMU_IMG rebase -u -b "" "$TEST_IMG"
  69    _qcow2_dump_header
  70    _check_test_img
  71
  72    echo
  73    echo === Add a backing file and format ===
  74    echo
  75    $QEMU_IMG rebase -u -b "/some/backing/file/path" -F host_device "$TEST_IMG"
  76    _qcow2_dump_header
  77done
  78
  79# success, all done
  80echo "*** done"
  81rm -f $seq.full
  82status=0
  83