aloha

TCP/IP written in Erlang.

Goals

• Provide connectivity
• Simplicity

Non goals

• Performance

API

aloha provides an API similar to gen_tcp/inet. See aloha_demo for an example to run cowboy/ranch on aloha.

Implemented features

• Basic gen_tcp/inet-like API
• TCP
  • Active and Passive connections
  • Retransmit
  • Delayed ACK
  • RTT estimate
  • MD5 signature
• IP
  • ARP
  • ICMP
• IPv6
  • NDP
  • ICMPv6
• Virtual NIC

TODO

• implement "congested" loopback variant for testing
• user timeout
• rto backoff
• exit_on_close
• urg
• sender sws avoidance
• ip fragment
• use gproc instead of raw ets tables?
• handle exiting processes in accept/read/write queues
• wscale option
• out of order segment queueing
• make aloha_nic a separate app
• send_timeout
• workaround ct_run failure on travis-ci
• ctlinput
• pmtu discovery
• udp