iotests: Add test for image header overlap

Add a test for an image with an unallocated image header; instead of an
assertion, this should result in the image being marked corrupt.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2014-08-07 22:47:54 +02:00 committed by Kevin Wolf
parent ff52aab2df
commit a42f8a3d05
2 changed files with 17 additions and 0 deletions

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@ -164,6 +164,15 @@ wait_break 0
write 64k 64k
resume 0" | $QEMU_IO | _filter_qemu_io
echo
echo "=== Testing unallocated image header ==="
echo
_make_test_img 64M
# Create L1/L2
$QEMU_IO -c "$OPEN_RW" -c "write 0 64k" | _filter_qemu_io
poke_file "$TEST_IMG" "$rb_offset" "\x00\x00"
$QEMU_IO -c "$OPEN_RW" -c "write 64k 64k" | _filter_qemu_io
# success, all done
echo "*** done"
rm -f $seq.full

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@ -93,4 +93,12 @@ blkdebug: Suspended request '0'
write failed: Input/output error
blkdebug: Resuming request '0'
aio_write failed: No medium found
=== Testing unallocated image header ===
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: Preventing invalid write on metadata (overlaps with qcow2_header); image marked as corrupt.
write failed: Input/output error
*** done