c# wcf logging

from here, it's not perfect, but at least i can see internal API calls:

<system.diagnostics>
  <sources>
    <source name="System.ServiceModel.MessageLogging">
      <listeners>
         <add name="messages"
              type="System.Diagnostics.XmlWriterTraceListener"
              initializeData="c:\temp\messages.svclog" />
        </listeners>
    </source>
  </sources>
</system.diagnostics>

<system.serviceModel>
  <diagnostics>
    <messageLogging
         logEntireMessage="true"
         logMalformedMessages="true"
         logMessagesAtServiceLevel="true"
         logMessagesAtTransportLevel="true"
         maxMessagesToLog="3000"
         maxSizeOfMessageToLog="2000"/>
  </diagnostics>
</system.serviceModel>