tests/qemu-iotests/058

   1 #!/usr/bin/env bash
   2 #
   3 # Test export internal snapshot by qemu-nbd, convert it by qemu-img.
   4 #
   5 # Copyright (C) 2013 IBM, Inc.
   6 #
   7 # Based on 029.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 #
  22
  23 # creator
  24 owner=xiawenc@linux.vnet.ibm.com
  25
  26 seq=`basename $0`
  27 echo "QA output created by $seq"
  28
  29 status=1        # failure is the default!
  30
  31 _export_nbd_snapshot()
  32 {
  33     nbd_server_start_unix_socket "$TEST_IMG" -l $1
  34 }
  35
  36 _export_nbd_snapshot1()
  37 {
  38     nbd_server_start_unix_socket "$TEST_IMG" -l snapshot.name=$1
  39 }
  40
  41 _cleanup()
  42 {
  43     nbd_server_stop
  44     _cleanup_test_img
  45     _rm_test_img "$converted_image"
  46 }
  47 trap "_cleanup; exit \$status" 0 1 2 3 15
  48
  49 # get standard environment, filters and checks
  50 . ./common.rc
  51 . ./common.filter
  52 . ./common.pattern
  53 . ./common.nbd
  54
  55 _supported_fmt qcow2
  56 _supported_proto file
  57 _supported_os Linux
  58 _require_command QEMU_NBD
  59 # Internal snapshots are (currently) impossible with refcount_bits=1
  60 _unsupported_imgopts 'refcount_bits=1[^0-9]'
  61
  62 nbd_snapshot_img="nbd:unix:$nbd_unix_socket"
  63
  64 converted_image=$TEST_IMG.converted
  65
  66 # Use -f raw instead of -f $IMGFMT for the NBD connection
  67 QEMU_IO_NBD="$QEMU_IO -f raw --cache=$CACHEMODE"
  68
  69 echo
  70 echo "== preparing image =="
  71 _make_test_img 64M
  72 $QEMU_IO -c 'write -P 0xa 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io
  73 $QEMU_IO -c 'write -P 0xb 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io
  74 $QEMU_IMG snapshot -c sn1 "$TEST_IMG"
  75 $QEMU_IO -c 'write -P 0xc 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io
  76 $QEMU_IO -c 'write -P 0xd 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io
  77 _check_test_img
  78
  79 echo
  80 echo "== verifying the image file with patterns =="
  81 $QEMU_IO -c 'read -P 0xc 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io
  82 $QEMU_IO -c 'read -P 0xd 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io
  83
  84 _export_nbd_snapshot sn1
  85
  86 echo
  87 echo "== verifying the exported snapshot with patterns, method 1 =="
  88 $QEMU_IO_NBD -r -c 'read -P 0xa 0x1000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
  89 $QEMU_IO_NBD -r -c 'read -P 0xb 0x2000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
  90
  91 _export_nbd_snapshot1 sn1
  92
  93 echo
  94 echo "== verifying the exported snapshot with patterns, method 2 =="
  95 $QEMU_IO_NBD -r -c 'read -P 0xa 0x1000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
  96 $QEMU_IO_NBD -r -c 'read -P 0xb 0x2000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
  97
  98 $QEMU_IMG convert "$TEST_IMG" -l sn1 -O qcow2 "$converted_image"
  99
 100 echo
 101 echo "== verifying the converted snapshot with patterns, method 1 =="
 102 $QEMU_IO -c 'read -P 0xa 0x1000 0x1000' "$converted_image" | _filter_qemu_io
 103 $QEMU_IO -c 'read -P 0xb 0x2000 0x1000' "$converted_image" | _filter_qemu_io
 104
 105 $QEMU_IMG convert "$TEST_IMG" -l snapshot.name=sn1 -O qcow2 "$converted_image"
 106
 107 echo
 108 echo "== verifying the converted snapshot with patterns, method 2 =="
 109 $QEMU_IO -c 'read -P 0xa 0x1000 0x1000' "$converted_image" | _filter_qemu_io
 110 $QEMU_IO -c 'read -P 0xb 0x2000 0x1000' "$converted_image" | _filter_qemu_io
 111
 112 # success, all done
 113 echo "*** done"
 114 rm -f $seq.full
 115 status=0