s3: smbd: Strip any leading '\\' characters if the SMB2 DFS flag is set.
MacOS clients send SMB2 DFS pathnames as \server\share\file\name.
Ensure smbd can cope with this by stipping any leading '\\'
characters from an SMB2 packet with the DFS flag set.
Remove knownfail.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15277
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Wed Jan 4 07:46:06 UTC 2023 on sn-devel-184