This patch series contains fixes and enhancements related to
path management over MPTCP connections, particularly in support of
out-of-kernel PMs. The changes ensure that the required bits of
information are conveyed through MPTCP netlink events which 
would be consumed by a path manager in making decisions, more
flexibility in establishing paths from either end of an MPTCP
connection, and better handling of listening sockets which serve
in MPJ handshakes.

v1 -> v2:
-fixed formatting
-check_fully_established: check for 3rd ACK retransmission only on passive
side of the MPJ handshake

v2 -> v3:
-subflow_simultaneous_connect: check for active subflow socket
-new helper lsk_list_find_or_create()
-updated mptcp_pm_nl_create_listen_socket() to take struct net* as param
-new addr flag MPTCP_PM_ADDR_FLAG_NO_LISTEN to skip creating a
listening socket in the kernel during an ADD_ADDR request
-reflect the pm.server_side attribute in the MPTCP_EVENT_CREATED
and MPTCP_EVENT_ESTABLISHED events 

Kishen Maloor (8):
  mptcp: do not restrict subflows with non-kernel PMs
  mptcp: store remote id from MP_JOIN SYN/ACK in local ctx
  mptcp: reflect remote port (not 0) in ANNOUNCED events
  mptcp: establish subflows from either end of connection
  mptcp: netlink: store per namespace list of refcounted listen socks
  mptcp: netlink: store lsk ref in mptcp_pm_addr_entry
  mptcp: attempt to add listening sockets for announced addrs
  mptcp: expose server_side attribute in MPTCP netlink events

 include/uapi/linux/mptcp.h |   2 +
 net/mptcp/options.c        |   4 +-
 net/mptcp/pm.c             |   8 +-
 net/mptcp/pm_netlink.c     | 210 ++++++++++++++++++++++++++++++++-----
 net/mptcp/protocol.c       |   5 +-
 net/mptcp/protocol.h       |  14 ++-
 net/mptcp/subflow.c        |   4 +-
 7 files changed, 209 insertions(+), 38 deletions(-)


base-commit: 05854a699d27b11d8fb3217ec2e0dbf28ecb58e8
-- 
2.31.1