#12 How to reset session on client side?

[Achim Kraus]

Use case:

• The client has established a DTLS session successfully.
• The server loses the DTLS session (e.g. reboot)
  What should a client then call, to reestablish a new DTLS session?
  On my opinion, the client should try to “reconnect” with a “new session” in epoch 0 (see RFC6347, 4.2.8), but I don’t seem, which tinyDTLS function allows to reset the session.

“dtls_close” seems to send the close notification, but I can’t see, how this resets the session.
“dtls_destroy_peer“ is static, so client side code could not call it.
„dtls_free_context“ will reset all session.

This issue is related to https://sourceforge.net/p/tinydtls/tickets/7/, but points to the client side.

[Olaf Bergmann]

Thanks for pointing this out. I will take a deeper look into the re-handshake for both, client and server side.

[Achim Kraus]

Proposal for API extension to allow to reset a peer.

[Olaf Bergmann]

Fixed as suggested in ce2d866 (currently branch develop).