6399 SMB2 support Portions contributed by: Alek Pinchuk <alek@nexenta.com> Portions contributed by: Kevin Crowe <kevin.crowe@nexenta.com> Portions contributed by: Matt Barden <Matt.Barden@nexenta.com> Reviewed by: Alek Pinchuk <alek@nexenta.com> Reviewed by: Bayard Bell <bayard.bell@nexenta.com> Reviewed by: Dan Fields <dan.fields@nexenta.com> Reviewed by: Daniel Borek <daniel.borek@nexenta.com> Reviewed by: Gordon Ross <gordon.ross@nexenta.com> Reviewed by: Kevin Crowe <kevin.crowe@nexenta.com> Reviewed by: Matt Barden <matt.barden@nexenta.com> Reviewed by: Yuri Pankov <Yuri.Pankov@nexenta.com> Approved by: Garrett D'Amore <garrett@damore.org>