tests/qemu-iotests/058

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