Multipath TCP

#MPTCP in the Linux kernel v6.2 is going to fully support #TCP FastOpen #TFO ⚡: after the client side support added in v6.1, the server side has now been added. Also, the support of sendmsg(MSG_FASTOPEN) and the remaining socket options has been added: TCP_FASTOPEN, TCP_FASTOPEN_KEY and TCP_FASTOPEN_NO_COOKIE.

In v6.2, there will also be cleaner messages in case of error when creating MPTCP endpoints and the path manager will send “listener“ Netlink events, useful for a userspace path manager.

ChangeLog: 📃