[MPTCP][PATCH v7 mptcp-next 0/6] fullmesh path manager support

[Geliang Tang <geliangtang@gmail.com>]

From: Geliang Tang <geliangtang@xiaomi.com>

v7:
 - add a new patch to drop flags and ifindex arguments of
   __mptcp_subflow_connect().
 - add more comments for the testcase.

v6:
 - drop lookup_subflow_by_addrs()
 - pass three arrays instead of 'entries' in fill_local_adresses_vec()
 - drop the 'remote' argument of fill_local_addresses_vec
 - drop the 'local' argument of fill_remote_addresses_vec
 - fix the pm.subflows.
 - add limit testcase.

v5:
 - patch 1, add a new helper lookup_address_in_vec.
 - patch 2, update pm.subflows in the non-fullmesh case.
 - patch 4, add more tests.
 - tag: export/20210727T054640

v4:
 - add new helpers, fill_local/remote_addresses_vec
 - add max_subflows checks
 - add 'local' into the local addresses array only when no fullmesh
   entry found.
 - add signal,fullmesh check

v3:
 - the in-kernel fullmesh path manager has been dropped from this
   patchset, only keep the fullmesh flag support code.

v2:
 - Implement the fullmesh mode as an extension to the netlink PM, not a
   standalone PM as Paolo suggested.
 - drop duplicate code.
 - add a new per endpoint flag MPTCP_PM_ADDR_FLAG_FULLMESH.

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/193

Geliang Tang (6):
  mptcp: drop flags and ifindex arguments
  mptcp: remote addresses fullmesh
  mptcp: local addresses fullmesh
  selftests: mptcp: set and print the fullmesh flag
  selftests: mptcp: add fullmesh testcases
  selftests: mptcp: delete uncontinuous removing ids

 include/uapi/linux/mptcp.h                    |   1 +
 net/mptcp/pm_netlink.c                        | 155 ++++++++++++++++--
 net/mptcp/protocol.h                          |   5 +-
 net/mptcp/subflow.c                           |   7 +-
 .../testing/selftests/net/mptcp/mptcp_join.sh |  76 ++++++++-
 tools/testing/selftests/net/mptcp/pm_nl_ctl.c |  16 +-
 6 files changed, 233 insertions(+), 27 deletions(-)

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2.31.1