Package: halevt
Version: 0.1.3-3
Severity: normal
Automounting of removable media is not working.
I get the following output in /var/log/messages when I insert a USB thumb
drive:
--- snip ---
Jun 11 16:36:44 localhost halevt: Running: halevt-mount -u
/org/freedesktop/Hal/devices/volume_uuid_2E64_5372 -o sync -m 002
--- snip ---
which shows that halevt is correctly handling the event, but halevt-mount
fails to mount the drive as it is not mounted as "/media/disk".
Running the command as halevt fails with:
--- snip ---
r...@kinakuta:/# su - halevt -c "halevt-mount -u
/org/freedesktop/Hal/devices/volume_uuid_2E64_5372 -o sync -m 002"
Mount error for /org/freedesktop/Hal/devices/volume_uuid_2E64_5372:
DBus Error org.freedesktop.Hal.Device.PermissionDeniedByPolicy:
org.freedesktop.hal.storage.mount-removable no <-- (action, result)
--- snip ---
The problem seems to be that PolicyKit is denying the
"org.freedesktop.hal.storage.mount-removable" action for the halevt user.
--- snip ---
hal...@kinakuta:~$ polkit-auth
org.freedesktop.hal.device-access.cdrom
org.freedesktop.hal.device-access.floppy
org.freedesktop.hal.device-access.joystick
org.freedesktop.hal.device-access.mouse
org.freedesktop.hal.device-access.video
Session57:
unix-user = '115'
realname = ''
seat = 'Seat1'
session-type = ''
active = FALSE
x11-display = ''
x11-display-device = ''
display-device = '/dev/pts/3'
remote-host-name = ''
is-local = TRUE
on-since = '2009-06-11T14:49:56.720567Z'
login-session-id = '4294967295'
--- snip ---
This clearly shows that the halevt user is missing the required permissions
and does not obtain them by the "active = TRUE" default policy, because the
session is recognised as inactive. (Yes, i edited /etc/passwd to allow shell
login)
I therefore added the following stanza to /etc/PolicyKit/PolicyKit.conf and
restarted DBUS:
--- snip ---
<config version="1.0">
...
<match action="org.freedesktop.hal.storage.mount-removable">
<match user="halevt">
<return result="yes"/>
</match>
</match>
...
</config>
--- snip ---
and it works:
--- snip ---
Jun 11 17:03:11 localhost halevt: Running: halevt-mount -u
/org/freedesktop/Hal/devices/volume_uuid_2E64_5372 -o sync -m 002
Jun 11 17:03:11 localhost halevt: Running: halevt-mount -s
r...@kinakuta:/home/babilen# ls /media/
cdrom cdrom0 disk
--- snip ---
The same effect can be achieved by using "polkit-gnome-authorization". Does
anybody know where the rules set with that tool are saved?
I am also a bit unsure about plugdev vs. PolicyKit with halevt. It looks like
the maintainer thought that it is sufficient that the halevt user has
"plugdev" as primary group to have automounting working, but this assumption
seems to be wrong.
with kind regards
Wolodja Wentland
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.26-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages halevt depends on:
ii adduser 3.110 add and remove users and groups
ii hal 0.5.12~git20090406.46dc48-2 Hardware Abstraction Layer
ii libboolstuff 0.1.12-1 library for operating on boolean e
ii libc6 2.9-12 GNU C Library: Shared libraries
ii libdbus-1-3 1.2.12-1 simple interprocess messaging syst
ii libdbus-glib 0.80-4 simple interprocess messaging syst
ii libglib2.0-0 2.20.1-2 The GLib library of C routines
ii libhal1 0.5.12~git20090406.46dc48-2 Hardware Abstraction Layer - share
ii libxml2 2.7.3.dfsg-1 GNOME XML library
halevt recommends no packages.
halevt suggests no packages.
-- no debconf information
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