Use PolicyKit to authorize the system settings' AddConnection method
and the system settings connections' Update and Delete methods.
* libnm-glib/nm-settings.c (impl_exported_connection_update)
(impl_exported_connection_delete, nm_exported_connection_update)
(nm_exported_connection_delete): Return boolean and fill GError
to notify the callers of the reasons why it might have failed.
* libnm-glib/nm-dbus-settings-system.c
(nm_dbus_settings_system_add_connection): Return the error from dbus
call so that the callers can see why it failed.
* libnm-glib/nm-dbus-connection.c (update, delete): Update the
signatures.
* system-settings/src/nm-polkit-helpers.[ch]: Implement.
* system-settings/src/nm-sysconfig-connection.[ch]: Implement. New
abstract base class that checks PolicyKit permissions.
* system-settings/src/dbus-settings.c:
(impl_settings_add_connection): Check the policy before carring out
the request.
* system-settings/plugins/keyfile/nm-keyfile-connection.c:
Inherit from NMSysconfigConnection, check the policies before
allowing updating or removing.
* system-settings/plugins/ifcfg-suse/nm-suse-connection.c:
Inherit from NMSysconfigConnection.
* introspection/nm-exported-connection.xml: Annotate "Update" and
"Delete" methods with async flag so that the implementations can get
access to DBusGMethodInvocation.
* system-settings/src/dbus-settings.c
(settings_add_connection_check_privileges): Implement.
(impl_settings_add_connection): Check the privileges before adding a new
connection. Improve error reporting.
* introspection/nm-settings-system.xml: Make the 'AddConnection' method
async so that the implementation can access DBusGMethodInvocation.
* configure.in: Check for PolicyKit.
* policy/org.freedesktop.network-manager-settings.system.policy:
New file.
* policy/Makefile.am: Install the policy file.
* configure.in: Add 'policy' subdir.
git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@3646 4912f4e0-d625-0410-9fb7-b9a5a253dbdc
d2cf6fa75c