[PATCH mptcp-next v12 00/15] dump for userspace pm

[Geliang Tang <geliang@kernel.org>]

From: Geliang Tang <tanggeliang@kylinos.cn>

v12:
 - rebased on export/20240214T102432
 - base-commit: 9557cf4aefeb025d9da122654d0782b772d6c03b

v11:
 - update patch 5 as Mat suggested.
 - depends on "fixes for userspace PM" series.

v10:
 - fix a checkpatch.sh warning reported by CI.
 - fix build warnings reported by kernel test robot <lkp@intel.com>.

v9:
 - add missing "sock_put(sk)" in patch 7, 17 and 21 to fix the "kmemleak"
   errors reported by CI.
 - rename the helper to mptcp_pm_has_addr_attr_id.
 - use my new mail address.

v8:
 - Address Mat's comments in v7

v7:
 - fix checkpatch.sh warning reported by CI.
 - fix build errors reported by CI.

v6:
 - patches 1-5, fixes for -net
 - patches 6, 15, selftests for "fixes for -net".
 - patches 7-14, 16-21, update "dump for userspace pm v5"
 - patches 22, 23, cleanups for set_flags
 - patch 24, flush selftest.

v5:
 - patch 2, save bitmap instead of id.
 - patch 3, drop token in reply.
 - update patch 4 and patch 12, add mptcp_pm_dump_addr and
   mptcp_pm_get_addr wrappers in pm.c

v4:
 - update patch 2, patch 3 and patch 12.
 - fix the warnings reported by CI in v3:

Unable to validate one commit: 7633a101a mptcp: get addr in userspace pm list
Unable to compile mptcp source code with make W=1 net/mptcp/pm_netlink.o
Unable to compile mptcp source code with make C=1 net/mptcp/pm_netlink.o: net/mptcp/pm_netlink.c:1656:5: warning: symbol 'mptcp_pm_nl_get_addr' was not declared. Should it be static?

v3:
 - fix the errors reported by CI in v2:

[10:55:51.288] [  897.523894][ T5664] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306
[10:55:51.288] [  897.532157][ T5664] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 5664, name: pm_nl_ctl
[10:55:51.289] [  897.539503][ T5664] preempt_count: 201, expected: 0

 - drop mptcp_pm_nl_put_entry_msg and mptcp_pm_nl_put_entry_info
   helpers.

v2:
Address Mat's comments in v1:
 - patch 2: pass token to dump_addr too.
 - patch 2: add back id in mptcp_userspace_pm_dump_addr().
 - patch 5: update mptcp.yaml

v1:
Address Mat's comments in "userspace pm enhancements" v14.

Geliang Tang (15):
  mptcp: export mptcp_genl_family & mptcp_nl_fill_addr
  mptcp: implement mptcp_userspace_pm_dump_addr
  mptcp: add token for get-addr in yaml
  mptcp: dump addrs in userspace pm list
  mptcp: check userspace pm flags
  selftests: mptcp: add userspace pm subflow flag
  selftests: mptcp: add token for dump_addr
  selftests: mptcp: add check_output helper
  selftests: mptcp: dump after creating id 0 subflow
  selftests: mptcp: dump userspace addrs list
  mptcp: add userspace_pm_lookup_addr_by_id helper
  mptcp: implement mptcp_userspace_pm_get_addr
  mptcp: get addr in userspace pm list
  selftests: mptcp: add token for get_addr
  selftests: mptcp: userspace pm get addr tests

 Documentation/netlink/specs/mptcp_pm.yaml     |   3 +-
 net/mptcp/mptcp_pm_gen.c                      |   7 +-
 net/mptcp/mptcp_pm_gen.h                      |   2 +-
 net/mptcp/pm.c                                |  16 ++
 net/mptcp/pm_netlink.c                        |  26 ++-
 net/mptcp/pm_userspace.c                      | 177 ++++++++++++++++--
 net/mptcp/protocol.h                          |  13 ++
 .../testing/selftests/net/mptcp/mptcp_join.sh | 102 ++++++++++
 tools/testing/selftests/net/mptcp/pm_nl_ctl.c |  39 +++-
 9 files changed, 353 insertions(+), 32 deletions(-)

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2.40.1