3 # Test qemu-img convert --salvage
5 # Copyright (C) 2019 Red Hat, Inc.
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.
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.
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/>.
22 owner
=mreitz@redhat.com
25 echo "QA output created by $seq"
27 status
=1 # failure is the default!
33 trap "_cleanup; exit \$status" 0 1 2 3 15
35 # get standard environment, filters and checks
40 _supported_fmt generic
43 _unsupported_imgopts
"subformat=streamOptimized"
45 if [ "$IMGOPTSSYNTAX" = "true" ]; then
46 # We use json:{} filenames here, so we cannot work with additional options.
47 _unsupported_fmt
$IMGFMT
49 # - With VDI, the output is ordered differently. Just disable it.
50 # - VHDX has large clusters; because qemu-img convert tries to
51 # align the requests to the cluster size, the output is ordered
52 # differently, so disable it, too.
53 _unsupported_fmt vdi vhdx
57 TEST_IMG
="$TEST_IMG.orig" _make_test_img
64M
59 $QEMU_IO -c 'write -P 42 0 64M' "$TEST_IMG.orig" | _filter_qemu_io
64 # Offsets on which to fail block-status. Keep in ascending order so
65 # the indexing done by _filter_offsets will appear in ascending order
66 # in the output as well.
67 status_fail_offsets
="$((16 * 1024 * 1024 + 8192))
68 $((33 * 1024 * 1024 + 512))"
70 # Offsets on which to fail reads. Keep in ascending order for the
72 # The second element is shared with $status_fail_offsets on purpose.
73 # Starting with the third element, we test what happens when a
74 # continuous range of sectors is inaccessible.
75 read_fail_offsets
="$((32 * 1024 * 1024 - 65536))
76 $((33 * 1024 * 1024 + 512))
77 $(seq $((34 * 1024 * 1024)) $sector_size \
78 $((34 * 1024 * 1024 + 4096 - $sector_size)))"
81 # blkdebug must be above the format layer so it can intercept all
83 source_img
="json:{'driver': 'blkdebug',
88 'filename': '$TEST_IMG.orig'
93 for ofs
in $status_fail_offsets
95 source_img
+="{ 'event': 'none',
96 'iotype': 'block-status',
98 'sector': $((ofs / sector_size)) },"
101 for ofs
in $read_fail_offsets
103 source_img
+="{ 'event': 'none',
106 'sector': $((ofs / sector_size)) },"
109 # Remove the trailing comma and terminate @inject-error and json:{}
110 source_img
="${source_img%,} ] }"
122 filters
+=" -e s/$ofs/status_fail_offset_$index/"
129 filters
+=" -e s/$ofs/read_fail_offset_$index/"
136 # While determining the number of allocated sectors in the input
137 # image, we should see one block status warning per element of
138 # $status_fail_offsets.
140 # Then, the image is read. Since the block status is queried in
141 # basically the same way, the same warnings as in the previous step
142 # should reappear. Interleaved with those we should see a read
143 # warning per element of $read_fail_offsets.
144 # Note that $read_fail_offsets and $status_fail_offsets share an
145 # element (read_fail_offset_1 == status_fail_offset_1), so
146 # "status_fail_offset_1" in the output is the same as
147 # "read_fail_offset_1".
148 $QEMU_IMG convert
--salvage "$source_img" "$TEST_IMG" 2>&1 \
149 | _filter_offsets
"$status_fail_offsets" "$read_fail_offsets"
153 # The offsets where the block status could not be determined should
154 # have been treated as containing data and thus should be correct in
156 # The offsets where reading failed altogether should be 0. Make them
157 # 0 in the input image, too, so we can compare both images.
158 for ofs
in $read_fail_offsets
160 $QEMU_IO -c "write -z $ofs $sector_size" "$TEST_IMG.orig" \
162 | _filter_offsets
'' "$read_fail_offsets"
167 # These should be equal now.
168 $QEMU_IMG compare
"$TEST_IMG.orig" "$TEST_IMG"