[Samba] 4.1.5, spoolss_connect_to_client and negotiated protocol

[David Disseldorp]

Hi Thomas,

On Fri, 07 Mar 2014 13:07:02 +0100, Thomas Bork wrote:

> The message was printed anyway with Windows 7, which should reject null 
> session pipes, according to the lanman parameters:
> 
> Windows Registry Editor Version 5.00
> 
> [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanServer\Parameters]
> "ServiceDll"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,\
>  
> 00,74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,\
>    73,00,72,00,76,00,73,00,76,00,63,00,2e,00,64,00,6c,00,6c,00,00,00
> "ServiceDllUnloadOnStop"=dword:00000001
> "EnableAuthenticateUserSharing"=dword:00000001
> "NullSessionPipes"=hex(7):00,00
> "autodisconnect"=dword:0000000f
> "enableforcedlogoff"=dword:00000001
> "enablesecuritysignature"=dword:00000000
> "requiresecuritysignature"=dword:00000000
> "restrictnullsessaccess"=dword:00000001
> "Lmannounce"=dword:00000000
> "Size"=dword:00000001
> "AdjustedNullSessionPipes"=dword:00000003
> "Guid"=hex:5e,b5,dd,a3,b4,6c,59,4e,bb,2a,2a,c8,70,0a,ff,cf

Yes, you'll need to modify your registry to accept the backchannel
connection. Looks like you're already aware of that :-)

https://blogs.technet.com/b/askperf/archive/2009/01/16/understanding-print-notifications-in-windows-vista.aspx?Redirected=true

> 
> > @Thomas, if you're willing to test backchannel notifications against
> > an SMB2+ print client, I can send you a 4.1 based patch or rpm.  
> 
> As patch please :-)

Patch against v4-1-test branch attached. Thanks!

Cheers, David
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