On Fri, Sep 11, 2020 at 8:15 AM Nicolas Rybowski <nicolas.rybowski@xxxxxxxxxxxx> wrote: > > In order to precisely identify the parent MPTCP connection of a subflow, > it is required to access the mptcp_sock's token which uniquely identify a > MPTCP connection. > > This patch adds a new structure 'bpf_mptcp_sock' exposing the 'token' field > of the 'mptcp_sock' extracted from a subflow's 'tcp_sock'. It also adds the > declaration of a new BPF helper of the same name to expose the newly > defined structure in the userspace BPF API. > > This is the foundation to expose more MPTCP-specific fields through BPF. > > Currently, it is limited to the field 'token' of the msk but it is > easily extensible. > > Acked-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> > Acked-by: Mat Martineau <mathew.j.martineau@xxxxxxxxxxxxxxx> > Signed-off-by: Nicolas Rybowski <nicolas.rybowski@xxxxxxxxxxxx> Acked-by: Song Liu <songliubraving@xxxxxx>
