policy: implement Modem interface rules

data/org.freedesktop.ModemManager1.conf.polkit

@@ -29,6 +29,47 @@
     <allow send_destination="org.freedesktop.ModemManager1"
            send_interface="org.freedesktop.ModemManager1"
            send_member="SetLogging"/>
+
+    <!-- org.freedesktop.ModemManager1.Modem.xml -->
+
+    <!-- Allowed for everyone -->
+    <allow send_destination="org.freedesktop.ModemManager1"
+           send_interface="org.freedesktop.ModemManager1.Modem"
+           send_member="ListBearers"/>
+
+    <!-- Protected by the Device.Control policy rule -->
+    <allow send_destination="org.freedesktop.ModemManager1"
+           send_interface="org.freedesktop.ModemManager1.Modem"
+           send_member="Enable"/>
+
+    <allow send_destination="org.freedesktop.ModemManager1"
+           send_interface="org.freedesktop.ModemManager1.Modem"
+           send_member="CreateBearer"/>
+
+    <allow send_destination="org.freedesktop.ModemManager1"
+           send_interface="org.freedesktop.ModemManager1.Modem"
+           send_member="DeleteBearer"/>
+
+    <allow send_destination="org.freedesktop.ModemManager1"
+           send_interface="org.freedesktop.ModemManager1.Modem"
+           send_member="Reset"/>
+
+    <allow send_destination="org.freedesktop.ModemManager1"
+           send_interface="org.freedesktop.ModemManager1.Modem"
+           send_member="FactoryReset"/>
+
+    <allow send_destination="org.freedesktop.ModemManager1"
+           send_interface="org.freedesktop.ModemManager1.Modem"
+           send_member="SetAllowedModes"/>
+
+    <allow send_destination="org.freedesktop.ModemManager1"
+           send_interface="org.freedesktop.ModemManager1.Modem"
+           send_member="SetBands"/>
+
+    <allow send_destination="org.freedesktop.ModemManager1"
+           send_interface="org.freedesktop.ModemManager1.Modem"
+           send_member="Command"/>
+
   </policy>
 
   <policy user="root">