smart card state isn't properly reset causing connection problems

[CendioOssman]

Our smart card code currently doesn't reset properly. There are two times when this is needed:

• When asked by the server (when we get PAKID_CORE_SERVER_ANNOUNCE)
• When the connection is dropped

This can cause all kinds of issues as there might be pending smart card operations that will finish later and try to send the response when it is no longer allowed. This could result in bad responses to the server, or the connection being dropped because we try to send data when it is not allowed.

One case where this is easily seen is when you get redirected on connect. You then often get:

Core(error): tcp_send(), gnutls_record_send() failed with -408: Cannot perform this action while handshake is in progress.

Which is caused by the smart card code trying to send a response while we are doing the TLS handshake.