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48 lines
1.9 KiB
Markdown
48 lines
1.9 KiB
Markdown
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Packet Demuxer
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==============
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This is a QUIC specific module that parses headers of incoming packets and
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decides what to do next.
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Demuxer requirements for MVP
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----------------------------
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These are the requirements that were identified for MVP:
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- multiple QUIC packets in an UDP packet handling as packet coalescing
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must be supported
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- client must discard any packets that do not match existing connection ID
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- client must discard any packets with version different from the one initially
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selected
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Optional demuxer requirements
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-----------------------------
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These are optional features of the client side demuxer, not required for MVP
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but otherwise desirable:
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- optionally trigger sending stateless reset packets if a received packet
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on the client is well-formed but does not belong to a known connection
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Demuxer requirements for server
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-------------------------------
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Further requirements after MVP for server support:
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- on the server side packets can create a new connection potentially
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- server side packet handling for unsupported version packets:
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- trigger sending version negotiation packets if the server receives a packet
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with an unsupported version and is large enough to initiate a new
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connection; limit the number of such packets with the same destination
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- discard smaller packets with unsupported versions
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- packet handling on server for well-formed packets with supported versions
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but with unknown connection IDs:
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- if the packet is a well-formed Initial packet, trigger the creation of a
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new connection
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- if the packet is a well-formed 0RTT packet, mark the packet to be
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buffered for short period of time (as Initial packet might arrive late)
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- this is optional - enabled only if 0RTT support is enabled by the
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application
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- discard any other packet with unknown connection IDs
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- optionally trigger sending stateless reset packets as above for client
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