Motivation:
Previously, WritePCAPHandler would crash if more than 4GiB of data were
either received or sent through the same instance of the
WritePCAPHandler because of a UInt32 overflow representing the TCP
sequence/ACK numbers.
Modifications:
Make TCP sequence/ACK numbers wrap around correctly.
Result:
- now you can send/receive up to 16 EiB of data :P.
- fixes rdar://61887658
Motivation:
Especially with TLS but also without, in real production environments it
can be handy to be able to write pcap files from NIO directly.
Modifications:
add a ChannelHandler that can write a PCAP trace from what's going on in
the ChannelPipeline.
Result:
easier debugging in production
