Review Request 121429: Use out-of-band communication between ksld and greeter

[Martin Gräßlin]

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This is an automatically generated e-mail. To reply, visit:
https://git.reviewboard.kde.org/r/121429/
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(Updated Jan. 2, 2015, 12:01 p.m.)


Status
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This change has been marked as submitted.


Review request for Plasma, Àlex Fiestas and David Edmundson.


Repository: plasma-workspace


Description
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The screenlocker_greet needs to tell the parent ksld process which
windows it created. Ksld sends input events to these windows. So
far this was based on an X property on the window. Unfortunately
ksld didn't validate whether the windows tagged with this property
belong to the screenlocker_greet process it started.

With this change the communication for announcing windows is moved
away from the X11 protocol and instead a custom Wayland protocol is
used.

Ksld starts a KWaylandServer when the greet process gets started. It
creates anonymous unix sockets for the connection and passes one
filedescriptor to the started greeter process.

The check for the X property is removed in ksld and instead only
windows ids passed through the Wayland socket connection are
accepted.


Diffs
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  ksmserver/screenlocker/ksldapp.cpp 22698ce37e9d4be17126111b3ded8133f7c3baa6 
  ksmserver/screenlocker/lockwindow.h 9938d201269c89a24c9c0bd6275aa5f731bb5535 
  ksmserver/screenlocker/lockwindow.cpp 3aa963a59e21636862f5ca59e220bbea3bd41ff9 
  ksmserver/screenlocker/protocols/ksld.xml PRE-CREATION 
  ksmserver/screenlocker/waylandserver.h PRE-CREATION 
  ksmserver/screenlocker/waylandserver.cpp PRE-CREATION 
  ksmserver/screenlocker/greeter/greeterapp.h b92b13b63365a9026dba5d71b772dcd8c9ee3d3b 
  ksmserver/screenlocker/greeter/greeterapp.cpp 30d1821bdba38028959f3457e900a1b32e628192 
  ksmserver/screenlocker/greeter/main.cpp 12e570107d0cba851b8978131d730b27924529bb 
  ksmserver/screenlocker/ksldapp.h 095424c9845c134aa156917aeb6c8ddf31e8d25a 
  CMakeLists.txt c6d89c14b05f5639937aee5692d305fa2faed974 
  ksmserver/screenlocker/CMakeLists.txt 5378a10df2be70cee95b5612c23046eae639f610 
  ksmserver/screenlocker/greeter/CMakeLists.txt 10c473488f08354096f68784b9240392a444af5f 

Diff: https://git.reviewboard.kde.org/r/121429/diff/


Testing
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Running ksmserver with the patch. Lock/unlock working, my exploit is failing.


Thanks,

Martin Gräßlin

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