[MPTCP] [MPTCP][PATCH v9 mptcp-next 0/8] Add REMOVE_ADDR support

[MPTCP] [MPTCP][PATCH v9 mptcp-next 0/8] Add REMOVE_ADDR support

[Geliang Tang]

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v9:
 - update patch 3/8, simply call mptcp_pm_nl_rm_subflow_received.
 - update patch 5/8, use the reverse x-mas tree order.
 - this patchset should be applied after the applying of my another
   patchset, 'add ADD_ADDR echo flag support'.

v8:
 - drop anno_list in v7.
   We don't need to add a new list, conn_list is enough for the signal
address and local subflow.
 - fix local_id and remote_id issues.
   The RM_ADDR logic uses an address id to identify the removing
address, so we must make sure the subflow's local_id and remote_id be
set properly.
 - fix mptcp_pm_nl_rm_addr_received logic issue
 - update selftests

v7:
 - add RM_ADDR mib
 - update RM_ADDR selftests test case

v6:
 - rename lookup_anno_list_by_saddr to remove_anno_list_by_saddr as
   Paolo suggested.
 - add msk socket lock when traverse msk->conn_list as Paolo suggested.
 - Since the first three patches in v5 have been merged to export
   branch, drop them from this patchset.
 - add remove addr and subflow selftest test case.
 - this patchset is against mptcp_net-next's export branch.

v5:
 - merge mptcp_nl_remove_subflow() and mptcp_nl_remove_addr()
 - add cond_resched
 - reduce the indentation level in mptcp_pm_nl_rm_addr_received

v4:
 - update mptcp_subflow_shutdown()'s args.
 - add rm_id check to make sure we don't shutdown the first subflow.
 - add conn_list empty check.
 - move anno_list to mptcp_pm_data.
 - add a new patch 'mptcp: add remove subflow support'.

v3:
 - fix memory leak and lock issue in v2.
 - drop alist in v2.
 - fix mptcp_subflow_shutdown's arguments.
 - bzero remote in mptcp_pm_create_subflow_or_signal_addr.
 - add more commit message.

Geliang Tang (8):
  mptcp: remove addr and subflow in PM netlink
  mptcp: fix mptcp_pm_nl_rm_addr_received logic issue
  mptcp: implement mptcp_pm_remove_subflow
  mptcp: fix every subflow's local_id is zero
  mptcp: fix subflow's remote_id is zero issue
  mptcp: add RM_ADDR related mibs
  selftests: mptcp: add remove cfg in mptcp_connect
  selftests: mptcp: add remove addr and subflow test cases

 net/mptcp/mib.c                               |   2 +
 net/mptcp/mib.h                               |   2 +
 net/mptcp/pm.c                                |  15 +-
 net/mptcp/pm_netlink.c                        | 107 +++++++++++--
 net/mptcp/protocol.h                          |   3 +-
 net/mptcp/subflow.c                           |   8 +-
 .../selftests/net/mptcp/mptcp_connect.c       |  18 ++-
 .../testing/selftests/net/mptcp/mptcp_join.sh | 145 +++++++++++++++++-
 8 files changed, 276 insertions(+), 24 deletions(-)

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