[PATCH mptcp-next v5 0/5] add mptcp_address bpf_iter

[Geliang Tang <geliang@kernel.org>]

From: Geliang Tang <tanggeliang@kylinos.cn>

v5:
 - use "struct sock *sk" instead of "struct mptcp-sock *msk" as the
argument of bpf_iter_mptcp_userspace_pm_addr_new() in patch 3.
 - update patch 5.

v4:
 - patch 3, use spin_is_locked() instead of lockdep_assert_held().
 - patch 5, use ipv4_is_private_10() for the selftests instead of using
   ipv6_addr_v4mapped().

v3:
 - rename mptcp_address to mptcp_userspace_pm_addr as I mentioned in [1].
 - rebased.

[1]
https://patchwork.kernel.org/project/mptcp/patch/b6b53fd730a0edd0024963468d078488ad5e67aa.1729588019.git.tanggeliang@kylinos.cn/

v2:
 - squash patches 5,6 of v1 into one.
 - patch 3, use lockdep_assert_held instead of spin_is_locked.
 - update patch 5 to make it run normally in btf-debug mode.

Another bpf_iter for BPF path manager to traverse all address entries
on userspace_pm_local_addr_list of an MPTCP socket is added in this set.
Userspace pm tool is needed by the self test, so add pm_nl_ctl link in
patch 1.

Geliang Tang (5):
  selftests/bpf: Add mptcp pm_nl_ctl link
  selftests/bpf: Use pm_nl_ctl if ip mptcp not supported
  bpf: Add mptcp_userspace_pm_addr bpf_iter
  bpf: Export more helpers for mptcp_userspace_pm_addr test
  selftests/bpf: Add mptcp_userspace_pm_addr bpf_iter subtest

 MAINTAINERS                                   |   1 +
 net/mptcp/bpf.c                               |  72 ++++++
 tools/testing/selftests/bpf/Makefile          |   4 +-
 .../testing/selftests/bpf/bpf_experimental.h  |   8 +
 tools/testing/selftests/bpf/mptcp_pm_nl_ctl.c |   1 +
 .../testing/selftests/bpf/prog_tests/mptcp.c  | 235 +++++++++++++++++-
 tools/testing/selftests/bpf/progs/mptcp_bpf.h |   5 +
 .../selftests/bpf/progs/mptcp_bpf_iters.c     |  34 +++
 8 files changed, 351 insertions(+), 9 deletions(-)
 create mode 120000 tools/testing/selftests/bpf/mptcp_pm_nl_ctl.c

-- 
2.43.0