Bug 7068

Summary:	Session resize forces re-authentication on Windows 2016
Product:	ThinLinc	Reporter:	Karl Mikaelsson <derfian>
Component:	\| rdesktop (deprecated)	Assignee:	Karl Mikaelsson <derfian>
Status:	CLOSED FIXED
Severity:	Normal	CC:	ossman, samuel, thoni56
Priority:	P2	Keywords:	prosaic, samuel_tester, upstream
Version:	trunk
Target Milestone:	4.9.0
Hardware:	PC
OS:	Unknown
Acceptance Criteria:
Bug Depends on:
Bug Blocks:	6096
Attachments:	dynamic resize test protocol

Description Karl Mikaelsson cendio

2017-10-18 14:24:28 CEST

When we are connected to Windows 2016 with rdesktop and resize the ThinLinc session, you are forced to enter your password again.

Connections to Windows 2012 R2 reconnect without having to enter the password.

I used password authentication. I have not tested any other authentication methods.

This happens both when connecting to a desktop (tl-run-windesk) and when using Seamless applications (tl-run-winapp-seamless). I have not tested other methods of connecting to Windows servers.

Comment 1 Karl Mikaelsson cendio

2017-10-25 10:41:04 CEST

When reconnecting to a Windows 2016 server, we don't send a ARC_CS_PRIVATE_PACKET structure holding the authentication cookie as part of the client info PDU.

When reconnecting to a Windows 2012, rdesktop includes this structure.

Comment 2 Thomas Nilefalk cendio

2017-12-07 11:34:41 CET

This should be solved by https://github.com/rdesktop/rdesktop/pull/206

Comment 3 Thomas Nilefalk cendio

2017-12-07 11:36:21 CET

Created attachment 836 [details]
dynamic resize test protocol

This is the test protocol used during development of the dynamic resize feature.

Comment 5 Karl Mikaelsson cendio

2017-12-12 18:53:17 CET

This should be fixed by vendor drop r32951. We now use a resize method that does not disconnect the user from the server on Windows 2016.

Comment 7 Samuel Mannehed cendio

2017-12-29 16:44:06 CET

Aside from the problem reported on bug 7094 this works very well. The fact that Ctrl+Alt+Enter crashes rdesktop when running in a ThinLinc session makes it a little bit difficult to test this completely. But since there are no problems when running rdesktop outside of ThinLinc most cases have been tested.

I have verified:
 * that the old method of resizing still works well on Windows Server 2008 r2
 * that the new method works well on 2012 R2 and 2016
 * tl-run-rdesktop
 * tl-run-windesk
 * tl-run-winapp
 * tl-run-winapp-seamless
 * rdesktop running in a ThinLinc session
 * rdesktop running normally
 * rdesktop running on GNOME3
 * rdesktop running on XFCE