smbd/smb2_ioctl: fail zero length copy chunk requests
As documented in MS-SMB2 3.3.5.15.6 Handling a Server-Side Data Copy
Request, an invalid parameter response should be sent when:
The Length value in a single chunk is greater than
ServerSideCopyMaxChunkSize or *equal to zero*.
We do not currently abide by the latter part of this clause.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=10424
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit
00906f9604ad3e633e3d3cbc8d9dc4e2e305a455)