[Bug 11112] Running multiple wineservers simultaneously can corrupt registry

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=11112

Paul Chitescu <paulc at voip.null.ro> changed:

           What    |Removed                     |Added
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                 CC|                            |paulc at voip.null.ro

--- Comment #29 from Paul Chitescu <paulc at voip.null.ro> 2012-02-08 12:12:52 CST ---
(In reply to comment #28)
> One way this could get fixed is if wineserver was overhauled a little to delay
> loading the HKCU registry key until each client connects.  The HKCU key would
> be attached to each connection instead of being global.  As the wine client
> connects it would first announce the username/sid and then wineserver could
> load the user.reg file from the users .wine folder.
> This means that wineserver would have to run as root to load other users files
> like a system service.
> wineserver -s, --service    multi-user service

Running wineserver as root is a very complex problem by itself. It would mean
that wineserver would need to reimplement many of the access rights normally
provided by the operating system. The security implications are mindblowing.

Maybe we should focus on a slightly different problem that seems easier to
implement since it doesn't seem that simultaneous access from different users
is needed.

We could have a setuid wrapper that performs the equivalent of chown -R user
once it locked the wineprefix and then switches back to the original user. This
way the access rights will be correct.

A helpful touch would be to move user.reg inside c:\users\%USERNAME% so each
user will have its own HKCU.

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