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iotests: Add more tests for qcow2 corruption

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Add tests for unaligned L1/L2/reftable entries and non-fatal corruption
reports.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1409926039-29044-6-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Max Reitz 2014-09-05 16:07:19 +02:00 committed by Stefan Hajnoczi
parent a97c67ee6c
commit 5b0ed2be88
2 changed files with 105 additions and 2 deletions
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56
tests/qemu-iotests/060
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@ -169,9 +169,61 @@ echo "=== Testing unallocated image header ==="
echo echo
_make_test_img 64M _make_test_img 64M
# Create L1/L2 # Create L1/L2
$QEMU_IO -c "$OPEN_RW" -c "write 0 64k" | _filter_qemu_io $QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
poke_file "$TEST_IMG" "$rb_offset" "\x00\x00" poke_file "$TEST_IMG" "$rb_offset" "\x00\x00"
$QEMU_IO -c "$OPEN_RW" -c "write 64k 64k" | _filter_qemu_io $QEMU_IO -c "write 64k 64k" "$TEST_IMG" | _filter_qemu_io
echo
echo "=== Testing unaligned L1 entry ==="
echo
_make_test_img 64M
$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
# This will be masked with ~(512 - 1) = ~0x1ff, so whether the lower 9 bits are
# aligned or not does not matter
poke_file "$TEST_IMG" "$l1_offset" "\x80\x00\x00\x00\x00\x04\x2a\x00"
$QEMU_IO -c "read 0 64k" "$TEST_IMG" | _filter_qemu_io
echo
echo "=== Testing unaligned L2 entry ==="
echo
_make_test_img 64M
$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00"
$QEMU_IO -c "read 0 64k" "$TEST_IMG" | _filter_qemu_io
echo
echo "=== Testing unaligned reftable entry ==="
echo
_make_test_img 64M
poke_file "$TEST_IMG" "$rt_offset" "\x00\x00\x00\x00\x00\x02\x2a\x00"
$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
echo
echo "=== Testing non-fatal corruption on freeing ==="
echo
_make_test_img 64M
$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00"
$QEMU_IO -c "discard 0 64k" "$TEST_IMG" | _filter_qemu_io
echo
echo "=== Testing read-only corruption report ==="
echo
_make_test_img 64M
$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00"
# Should only emit a single error message
$QEMU_IO -c "$OPEN_RO" -c "read 0 64k" -c "read 0 64k" | _filter_qemu_io
echo
echo "=== Testing non-fatal and then fatal corruption report ==="
echo
_make_test_img 64M
$QEMU_IO -c "write 0 128k" "$TEST_IMG" | _filter_qemu_io
poke_file "$TEST_IMG" "$l2_offset" "\x80\x00\x00\x00\x00\x05\x2a\x00"
poke_file "$TEST_IMG" "$(($l2_offset+8))" "\x80\x00\x00\x00\x00\x06\x2a\x00"
# Should emit two error messages
$QEMU_IO -c "discard 0 64k" -c "read 64k 64k" "$TEST_IMG" | _filter_qemu_io
# success, all done # success, all done
echo "*** done" echo "*** done"

51
tests/qemu-iotests/060.out
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@ -101,4 +101,55 @@ wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with qcow2_header); further corruption events will be suppressed qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with qcow2_header); further corruption events will be suppressed
write failed: Input/output error write failed: Input/output error
=== Testing unaligned L1 entry ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
qcow2: Marking image as corrupt: L2 table offset 0x42a00 unaligned (L1 index: 0); further corruption events will be suppressed
read failed: Input/output error
=== Testing unaligned L2 entry ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
qcow2: Marking image as corrupt: Data cluster offset 0x52a00 unaligned (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed
read failed: Input/output error
=== Testing unaligned reftable entry ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
qcow2: Marking image as corrupt: Refblock offset 0x22a00 unaligned (reftable index: 0); further corruption events will be suppressed
write failed: Input/output error
=== Testing non-fatal corruption on freeing ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
qcow2: Image is corrupt: Cannot free unaligned cluster 0x52a00; further non-fatal corruption events will be suppressed
discard 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== Testing read-only corruption report ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
qcow2: Image is corrupt: Data cluster offset 0x52a00 unaligned (L2 offset: 0x40000, L2 index: 0); further non-fatal corruption events will be suppressed
read failed: Input/output error
read failed: Input/output error
=== Testing non-fatal and then fatal corruption report ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
wrote 131072/131072 bytes at offset 0
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
qcow2: Image is corrupt: Cannot free unaligned cluster 0x52a00; further non-fatal corruption events will be suppressed
qcow2: Marking image as corrupt: Data cluster offset 0x62a00 unaligned (L2 offset: 0x40000, L2 index: 0x1); further corruption events will be suppressed
discard 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read failed: Input/output error
*** done *** done