Hi, I want to access udisks on Debian Live via libdbus-java but there seems to be a bug.
I created a simple and reproducible test case. You can execute it with the following commands: ------------- wget http://www.imedias.ch/dateien/dbustest/dbus_test.sh sh dbus_test.sh ------------- On a virgin installation of Debian 6.0.2 this test case runs smoothly and simply lists all device files that are seen by udisks. On the other hand, when run on Debian Live (tested with debian-live-6.0.1-i386-kde-desktop), this produces the following error message: ------------- org.freedesktop.DBus$Error$AccessDenied: Rejected send message, 3 matched rules; type="method_call", sender=":1.41" (uid=1000 pid=2782 comm="java) interface="(unset)" member="EnumerateDeviceFiles" error name="(unset)" requested_reply=0 destination="org.freedesktop.UDisks" (uid=0 pid=2748 comm="/usr/lib/udisks/udisks-daemon)) at java.lang.reflect.Constructor.newInstance(libgcj.so.10) at org.freedesktop.dbus.Error.getException(Error.java:110) at org.freedesktop.dbus.Error.throwException(Error.java:140) at org.freedesktop.dbus.RemoteInvocationHandler.executeRemoteMethod(RemoteInvocationHandler.java:136) at org.freedesktop.dbus.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:188) at $Proxy3.EnumerateDeviceFiles(Unknown Source:0) at dbustest.DbusTest.main(DbusTest.java:48) ------------- The "AccessDenied" error message looks like a permission problem but interestingly, the internal command of the test case executed via qdbus works fine: ------------- qdbus --system org.freedesktop.UDisks /org/freedesktop/UDisks org.freedesktop.UDisks.EnumerateDeviceFiles ------------- Therefore I guess there is an issue with integration of libdbus-java, libunixsocket-java and aufs but the only hint I found is the following snippet from the aufs man page: ------------- The I/O to the named pipe or local socket are not handled by aufs, even if it exists in aufs. After the reader and the writer established their connection if the pipe/socket are copied-up, they keep using the old one instead of the copied-up one. ------------- Could this be the cause of this issue? Was this an issue before in other applications? Any other hint? Regards Ronny -- Ronny Standtke Fachhochschule Nordwestschweiz Dozent Medienpädagogik / ICT Pädagogische Hochschule Telefon: +41 32 628 67 08 Obere Sternengasse 7 Mobil : +41 79 786 81 82 4502 Solothurn -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/1309435292.2253.26.camel@ronny-laptop
