92 lines
3.3 KiB
Plaintext
92 lines
3.3 KiB
Plaintext
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<!-- This configuration file controls the systemwide message bus.
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Add a system-local.conf and edit that rather than changing this
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file directly. -->
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<!-- Note that there are any number of ways you can hose yourself
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security-wise by screwing up this file; in particular, you
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probably don't want to listen on any more addresses, add any more
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auth mechanisms, run as a different user, etc. -->
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<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-Bus Bus Configuration 1.0//EN"
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"http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
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<busconfig>
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<!-- Our well-known bus type, do not change this -->
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<type>system</type>
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<!-- Run as special user -->
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<user>messagebus</user>
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<!-- Fork into daemon mode -->
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<fork/>
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<!-- We use system service launching using a helper -->
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<standard_system_servicedirs/>
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<!-- This is a setuid helper that is used to launch system services -->
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<servicehelper>/usr/libexec/dbus-daemon-launch-helper</servicehelper>
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<!-- Write a pid file -->
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<pidfile>/var/run/dbus.pid</pidfile>
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<!-- Enable logging to syslog -->
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<syslog/>
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<!-- Only allow socket-credentials-based authentication -->
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<auth>EXTERNAL</auth>
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<!-- Only listen on a local socket. (abstract=/path/to/socket
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means use abstract namespace, don't really create filesystem
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file; only Linux supports this. Use path=/whatever on other
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systems.) -->
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<listen>unix:path=/var/run/dbus/system_bus_socket</listen>
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<policy context="default">
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<!-- All users can connect to system bus -->
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<allow user="*"/>
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<!-- Holes must be punched in service configuration files for
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name ownership and sending method calls -->
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<deny own="*"/>
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<deny send_type="method_call"/>
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<!-- Signals and reply messages (method returns, errors) are allowed
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by default -->
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<allow send_type="signal"/>
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<allow send_requested_reply="true" send_type="method_return"/>
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<allow send_requested_reply="true" send_type="error"/>
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<!-- All messages may be received by default -->
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<allow receive_type="method_call"/>
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<allow receive_type="method_return"/>
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<allow receive_type="error"/>
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<allow receive_type="signal"/>
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<!-- Allow anyone to talk to the message bus -->
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<allow send_destination="org.freedesktop.DBus"/>
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<!-- But disallow some specific bus services -->
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<deny send_destination="org.freedesktop.DBus"
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send_interface="org.freedesktop.DBus"
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send_member="UpdateActivationEnvironment"/>
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<deny send_destination="org.freedesktop.DBus"
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send_interface="org.freedesktop.systemd1.Activator"/>
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</policy>
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<!-- Only systemd, which runs as root, may report activation failures. -->
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<policy user="root">
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<allow send_destination="org.freedesktop.DBus"
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send_interface="org.freedesktop.systemd1.Activator"/>
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</policy>
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<!-- Config files are placed here that among other things, punch
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holes in the above policy for specific services. -->
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<includedir>system.d</includedir>
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<!-- This is included last so local configuration can override what's
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in this standard file -->
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<include ignore_missing="yes">system-local.conf</include>
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<include if_selinux_enabled="yes" selinux_root_relative="yes">contexts/dbus_contexts</include>
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</busconfig>
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