From: Kevin Wolf <[email protected]> The qcow2 specification requires that the header extension data be padded to round up the extension size to the next multiple of 8 bytes.
Signed-off-by: Kevin Wolf <[email protected]> Reviewed-by: Max Reitz <[email protected]> Message-id: [email protected] Signed-off-by: Stefan Hajnoczi <[email protected]> Signed-off-by: Kevin Wolf <[email protected]> (cherry picked from commit 8884dd1bbc5ce42cd657ffcbef3a477443468974) Signed-off-by: Michael Roth <[email protected]> --- tests/qemu-iotests/qcow2.py | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tests/qemu-iotests/qcow2.py b/tests/qemu-iotests/qcow2.py index 2058596..9cc4cf7 100755 --- a/tests/qemu-iotests/qcow2.py +++ b/tests/qemu-iotests/qcow2.py @@ -7,6 +7,10 @@ import string class QcowHeaderExtension: def __init__(self, magic, length, data): + if length % 8 != 0: + padding = 8 - (length % 8) + data += "\0" * padding + self.magic = magic self.length = length self.data = data -- 1.9.1
