Re:Upstreaming multipath TCP
by est on Friday September 27, 2019 @10:01AM
(#21092080)
> Baerts said, so there will be no user-space access to subflows for now.
So one has to tcpdump to observe the sub flows?
> But, naturally, there are users who want their unmodified binary programs to start using MPTCP once it's available. There is a working, if inelegant, solution to this problem. A new control-group hook allows the installation of a BPF program that runs when a program calls socket(); it can change the requested protocol to IPPROTO_MPTCP and the calling application will be none the wiser.
So one has to tcpdump to observe the sub flows?
> But, naturally, there are users who want their unmodified binary programs to start using MPTCP once it's available. There is a working, if inelegant, solution to this problem. A new control-group hook allows the installation of a BPF program that runs when a program calls socket(); it can change the requested protocol to IPPROTO_MPTCP and the calling application will be none the wiser.
Uhhhhh!