tree bc69bb83cdad4664033adb4782c36ee0dff1ac9e
parent f801568332321e2b1e7a8bd26c3e4913a312a2ec
author Thomas Werschlein <thomas.werschlein@geo.uzh.ch> 1535646560 +0200
committer Steve French <stfrench@microsoft.com> 1535948502 -0500

cifs: connect to servername instead of IP for IPC$ share

This patch is required allows access to a Microsoft fileserver failover
cluster behind a 1:1 NAT firewall.

The change also provides stronger context for authentication and share
connection (see MS-SMB2 3.3.5.7 and MS-SRVS 3.1.6.8) as noted by
Tom Talpey, and addresses comments about the buffer size for the UNC
made by Aurélien Aptel.

Signed-off-by: Thomas Werschlein <thomas.werschlein@geo.uzh.ch>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Tom Talpey <ttalpey@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
CC: Stable <stable@vger.kernel.org>