Document how to dispatch packets to the correct connections

[Demi-Marie]

This isn’t currently documented anywhere that I could see. Doing it based on the UDP 5-tuple breaks roaming.

[junhochoi]

Since quiche library itself is not handling UDP socket directly, it's up to the implementor.

You can take a look at existing quiche-based implementations, such as nginx patch included or curl for your reference.

[ghedo]

This is a good point actually, we don't explicitly document this, though the examples do show this: https://github.com/cloudflare/quiche/blob/master/examples/server.rs#L214-L333

We can probably add something to the documentation as well.

[Demi-Marie]

Would it be possible to provide a utility function for that?