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2018-05-23ssl: Generalize DTLS packet multiplexingIngela Anderton Andin
We want to prepare the code for more advanced DTLS usage and possibility to run over SCTP. First assumption was that the demultiplexer process "dtls listener" was needed for UDP only and SCTP could be made more TLS like. However the assumption seems not to hold. This commit prepares for customization possibilities.
2016-12-05ssl: Implement DTLS state machineIngela Anderton Andin
Beta DTLS, not production ready. Only very basically tested, and not everything in the SPEC is implemented and some things are hard coded that should not be, so this implementation can not be consider secure. Refactor "TLS connection state" and socket handling, to facilitate DTLS implementation. Create dtls "listner" (multiplexor) process that spawns DTLS connection process handlers. Handle DTLS fragmentation. Framework for handling retransmissions. Replay Detection is not implemented yet. Alerts currently always handled as in TLS.