Bug 995719 - sandbox default window manager is not as man page describes
sandbox default window manager is not as man page describes
Product: Fedora
Classification: Fedora
Component: policycoreutils (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Daniel Walsh
Fedora Extras Quality Assurance
Depends On:
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Reported: 2013-08-10 08:59 EDT by amturnip
Modified: 2014-02-05 17:15 EST (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2014-02-05 17:15:54 EST
Type: Bug
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Description amturnip 2013-08-10 08:59:39 EDT
Description of problem:

man sandbox says:

    -W windowmanager
           Select  alternative  window  manager  to  run within sandbox -X.
           Default to /usr/bin/matchbox-window-manager.

sandbox is not observing the documented default for -W.  The man page describes a better scenario than what sandbox implements.  

The following two sandbox invocations demonstrate a significant difference between omitting -W and specifying -W as the stated default.  In practice, firefox is unusable without -W, but works ok with an explicit statement of the stated default of -W.

    sandbox -X -t sandbox_web_t /usr/bin/firefox

    sandbox -X -t sandbox_web_t -W /usr/bin/matchbox-window-manager /usr/bin/firefox

Version-Release number of selected component (if applicable):

$ rpm -q policycoreutils matchbox-window-manager firefox

How reproducible:  Consistently.

Steps to Reproduce:

1. Open sandbox with default window manager to run firefox using the first invocation above. A firefox window opens, titled "Sandbox...".  In firefox, choose Tools Downloads. Now you are stuck! The Downloads window opened maximized in the sandbox, and you have no way to dismiss Downloads short of closing the whole sandbox.  Close the sandbox.

2. Open sandbox with -W reinforcing the stated default window manager, the second invocation above. Firefox has a title bar and close box within the sandbox window. In firefox, choose Tools Downloads. Downloads too has a title and close box. Use the Downloads window's close box to return to firefox.

Actual results:

Different outcomes result from (a) omitting -W, and (b) specifying -W as its documented default value.

Expected results:

The same outcome should result from (a) omitting -W, and (b) specifying -W as its documented default value.
Comment 1 amturnip 2013-08-10 09:57:11 EDT
Changing release to 18. This was observed in Fedora 18.
Comment 2 amturnip 2013-08-10 10:20:01 EDT
In Fedora 19 sandbox and its man page agree - and Firefox gets stuck in Downloads with -W or without it.
Comment 3 Daniel Walsh 2013-08-13 18:42:22 EDT
In 19 the default window manager is openbox.  In 18 it should be Matchbox-window-manager in both cases.  Is you do the case without -w do you see Matchbox-window-manager running?
Comment 4 amturnip 2013-08-14 20:18:46 EDT
In Fedora 18:

$ ps aux | grep matchbox

$ sandbox -X -t sandbox_web_t /usr/bin/firefox &
[1] 2515

$ ps aux | grep matchbox
turnip    2541  0.2  0.0 106116  6376 ?        S    20:01   0:00 /usr/bin/matchbox-window-manager -use_titlebar no

It is matchbox with or without -W, but different options.  The sandbox default apparently adds an option, "-use_titlebar no", that causes unhappiness with Firefox and is not in the man page's statement of the default.
Comment 5 Fedora End Of Life 2013-12-21 09:27:36 EST
This message is a reminder that Fedora 18 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 18. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '18'.

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Comment 6 Fedora End Of Life 2014-02-05 17:15:54 EST
Fedora 18 changed to end-of-life (EOL) status on 2014-01-14. Fedora 18 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

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