e7be13ad3f
As the feature name table can be quite large (over 9k if all 64 bits of all three feature fields have names; a mere 8 features leaves only 8 bytes for a backing file name in a 512-byte cluster), it is unwise to emit this optional header in images with small cluster sizes. Update iotest 036 to skip running on small cluster sizes; meanwhile, note that iotest 061 never passed on alternative cluster sizes (however, I limited this patch to tests with output affected by adding feature names, rather than auditing for other tests that are not robust to alternative cluster sizes). Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-Id: <20200324174233.1622067-4-eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
124 lines
3.9 KiB
Bash
Executable File
124 lines
3.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Test qcow2 feature bits
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#
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# Copyright (C) 2011 Red Hat, Inc.
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# Copyright IBM, Corp. 2010
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#
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# Based on test 031.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=stefanha@linux.vnet.ibm.com
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seq=`basename $0`
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echo "QA output created by $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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. ./common.pattern
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# This tests qcow2-specific low-level functionality
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_supported_fmt qcow2
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_supported_proto file
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# Only qcow2v3 and later supports feature bits;
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# qcow2.py does not support external data files;
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# this test requires a cluster size large enough for the feature table
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_unsupported_imgopts 'compat=0.10' data_file \
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'cluster_size=\(512\|1024\|2048\|4096\)'
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echo
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echo === Image with unknown incompatible feature bit ===
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echo
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_make_test_img 64M
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$PYTHON qcow2.py "$TEST_IMG" set-feature-bit incompatible 63
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# Without feature table
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$PYTHON qcow2.py "$TEST_IMG" del-header-ext 0x6803f857
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$PYTHON qcow2.py "$TEST_IMG" dump-header | grep features
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$PYTHON qcow2.py "$TEST_IMG" dump-header-exts
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_img_info
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# With feature table containing bit 63
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printf "\x00\x3f%s" "Test feature" | $PYTHON qcow2.py "$TEST_IMG" add-header-ext-stdio 0x6803f857
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_img_info
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echo
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echo === Image with multiple incompatible feature bits ===
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echo
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_make_test_img 64M
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$PYTHON qcow2.py "$TEST_IMG" set-feature-bit incompatible 61
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$PYTHON qcow2.py "$TEST_IMG" set-feature-bit incompatible 62
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$PYTHON qcow2.py "$TEST_IMG" set-feature-bit incompatible 63
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# Without feature table
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$PYTHON qcow2.py "$TEST_IMG" del-header-ext 0x6803f857
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_img_info
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# With feature table containing bit 63
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printf "\x00\x3f%s" "Test feature" | $PYTHON qcow2.py "$TEST_IMG" add-header-ext-stdio 0x6803f857
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_img_info
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# With feature table containing bit 61
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$PYTHON qcow2.py "$TEST_IMG" del-header-ext 0x6803f857
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printf "\x00\x3d%s" "Test feature" | $PYTHON qcow2.py "$TEST_IMG" add-header-ext-stdio 0x6803f857
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_img_info
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# With feature table containing bits 61 and 62
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$PYTHON qcow2.py "$TEST_IMG" del-header-ext 0x6803f857
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printf "\x00\x3d%s\x00%40s\x00\x3e%s\x00%40s" "test1" "" "test2" "" | $PYTHON qcow2.py "$TEST_IMG" add-header-ext-stdio 0x6803f857
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_img_info
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# With feature table containing all bits
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$PYTHON qcow2.py "$TEST_IMG" del-header-ext 0x6803f857
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printf "\x00\x3d%s\x00%40s\x00\x3e%s\x00%40s\x00\x3f%s\x00%40s" "test1" "" "test2" "" "test3" "" | $PYTHON qcow2.py "$TEST_IMG" add-header-ext-stdio 0x6803f857
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_img_info
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# With feature table containing unrelated bits, including compatible/autoclear
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$PYTHON qcow2.py "$TEST_IMG" del-header-ext 0x6803f857
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printf "\x01\x3d%s\x00%40s\x00\x3e%s\x00%40s\x02\x3f%s\x00%40s\x00\x3c%s\x00%40s" "test1" "" "test2" "" "test3" "" "test4" "" | $PYTHON qcow2.py "$TEST_IMG" add-header-ext-stdio 0x6803f857
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_img_info
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echo === Create image with unknown autoclear feature bit ===
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echo
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_make_test_img 64M
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$PYTHON qcow2.py "$TEST_IMG" set-feature-bit autoclear 63
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$PYTHON qcow2.py "$TEST_IMG" dump-header | grep features
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$PYTHON qcow2.py "$TEST_IMG" dump-header-exts
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echo
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echo === Repair image ===
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echo
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_check_test_img -r all
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$PYTHON qcow2.py "$TEST_IMG" dump-header | grep features
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$PYTHON qcow2.py "$TEST_IMG" dump-header-exts
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# success, all done
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echo "*** done"
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rm -f $seq.full
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status=0
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