tree cf9f0f71b301cc950949dfff20bdad9bebe0ed97
parent d8a6e505d6bba2250852fbc1c1c86fe68aaf9af3
author Steve French <smfrench@gmail.com> 1493863940 -0500
committer Steve French <smfrench@gmail.com> 1493864628 -0500

SMB3: Work around mount failure when using SMB3 dialect to Macs

Macs send the maximum buffer size in response on ioctl to validate
negotiate security information, which causes us to fail the mount
as the response buffer is larger than the expected response.

Changed ioctl response processing to allow for padding of validate
negotiate ioctl response and limit the maximum response size to
maximum buffer size.

Signed-off-by: Steve French <steve.french@primarydata.com>
CC: Stable <stable@vger.kernel.org>