On Wed, 30 Nov 2022 15:06:22 +0100 Matthieu Baerts wrote: > Thanks to the patch 6/11, the MPTCP path manager now sends Netlink events when > MPTCP listening sockets are created and closed. The reason why it is needed is > explained in the linked ticket [1]: > > MPTCP for Linux, when not using the in-kernel PM, depends on the userspace PM > to create extra listening sockets before announcing addresses and ports. Let's > call these "PM listeners". > > With the existing MPTCP netlink events, a userspace PM can create PM listeners > at startup time, or in response to an incoming connection. Creating sockets in > response to connections is not optimal: ADD_ADDRs can't be sent until the > sockets are created and listen()ed, and if all connections are closed then it > may not be clear to the userspace PM daemon that PM listener sockets should be > cleaned up. > > Hence this feature request: to add MPTCP netlink events for listening socket > close & create, so PM listening sockets can be managed based on application > activity. > > [1] https://github.com/multipath-tcp/mptcp_net-next/issues/313 > > Selftests for these new Netlink events have been added in patches 9,11/11. > > The remaining patches introduce different cleanups and small improvements in > MPTCP selftests to ease the maintenance and the addition of new tests. Also could you warp you cover letters at 72 characters? I need to reflow them before I can read them :(
