Using NID_userId instead of NID_x500UniqueIdentifier leads to:
``` 14(3220) INFO: <script>: MY_LOG HANDLE_TLS tls_peer_subject: <null> 14(3220) INFO: <script>: MY_LOG HANDLE_TLS sel(tls.peer.subject.uid): denzs 14(3220) INFO: <script>: MY_LOG HANDLE_TLS sel(tls.peer.subject): Sebastian Denz 14(3220) INFO: <script>: MY_LOG HANDLE_TLS sel(tls.peer.subject.name): Sebastian Denz 14(3220) INFO: <script>: MY_LOG HANDLE_TLS sel(tls.peer.subject.common_name): Sebastian Denz 14(3220) INFO: <script>: MY_LOG HANDLE_TLS sel(tls.peer.name): Sebastian Denz ```
This at least fixes accessing the uid attribute for me! :)
But it is still not possible to access the whole subject...
See https://github.com/denzs/kamailio/commit/66aacee31e487473f00d2b614bc09db678b... for my changes..