[Bug 682775] New: shmsink shmsrc permission problems

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=682775
  GStreamer | gst-plugins-bad | 0.10.x

           Summary: shmsink shmsrc permission problems
    Classification: Platform
           Product: GStreamer
           Version: 0.10.x
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: lfarkas at lfarkas.org
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


when we try to use shmsink and shmsrc from 2 different users eg. user1 and
user2. in this case currently gstreamer apps segfault eg from gstreamer-java we
simple got a segfault. the reason for this (may be) comes from 2 reason:
the shmsink has a perms flag, but it's only used for the shm area:
shm_open (path, flags, perms);
but do not applied to the control socket and in this case the two different
user are not able to communicate each other since the shmsrc has no permission
(by default) to the socket.

another strange thing we got in the log:
shm_open failed on /shmpipe. 2910.    0 (13): Permission denied
but we do give a socket path to the shmsrc so why use the generated file in the
above message?

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