tests/qemu-iotests/031

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