[PATCH bpf-next v10 00/12] use network helpers, part 8

[Geliang Tang <geliang@kernel.org>]

From: Geliang Tang <tanggeliang@kylinos.cn>

v10:
 - a new patch 10 is added.
 - patches 1-6, 8-9 unchanged, only commit logs updated.
 - "err = -errno" is used in patches 7, 11, 12 to get the real error
   number before checking value of "err".

v9:
 - new patches 5-7, new struct member expect_errno for network_helper_opts.
 - patches 1-4, 8-9 unchanged.
 - update patches 10-11 to make sure all tests pass.

v8:
 - only patch 8 updated, to fix errors reported by CI.

v7:
 - address Martin's comments in v6. (thanks)
 - use MAX(opts->backlog, 0) instead of opts->backlog.
 - use connect_to_fd_opts instead connect_to_fd.
 - more ASSERT_* to check errors.

v6:
 - update patch 6 as Daniel suggested. (thanks)

v5:
 - keep make_server and make_client as Eduard suggested.

v4:
 - a new patch to use make_sockaddr in sockmap_ktls.
 - a new patch to close fd in error path in drop_on_reuseport.
 - drop make_server() in patch 7.
 - drop make_client() too in patch 9.

v3:
 - a new patch to add backlog for network_helper_opts.
 - use start_server_str in sockmap_ktls now, not start_server.

v2:
 - address Eduard's comments in v1. (thanks)
 - fix errors reported by CI.

This patch set uses network helpers in sockmap_ktls and sk_lookup, and
drop three local helpers tcp_server(), inetaddr_len() and make_socket()
in them.

Geliang Tang (12):
  selftests/bpf: Add backlog for network_helper_opts
  selftests/bpf: Use start_server_str in sockmap_ktls
  selftests/bpf: Use connect_to_fd_opts in sockmap_ktls
  selftests/bpf: Use make_sockaddr in sockmap_ktls
  selftests/bpf: Add network_helper_opts for connect_fd_to_fd
  selftests/bpf: Add expect_errno for network_helper_opts
  selftests/bpf: Set expect_errno for cgroup_skb_sk_lookup
  selftests/bpf: Close fd in error path in drop_on_reuseport
  selftests/bpf: Use start_server_str in sk_lookup
  selftests/bpf: Use connect_fd_to_fd in sk_lookup
  selftests/bpf: Use connect_to_addr in sk_lookup
  selftests/bpf: Drop make_socket in sk_lookup

 tools/testing/selftests/bpf/network_helpers.c |  23 ++-
 tools/testing/selftests/bpf/network_helpers.h |   8 +-
 .../testing/selftests/bpf/prog_tests/bpf_nf.c |   5 +-
 .../bpf/prog_tests/cgroup_skb_sk_lookup.c     |   8 +-
 .../selftests/bpf/prog_tests/cgroup_tcp_skb.c |   4 +-
 .../selftests/bpf/prog_tests/cgroup_v1v2.c    |   1 +
 .../selftests/bpf/prog_tests/sk_lookup.c      | 162 +++++++-----------
 .../selftests/bpf/prog_tests/sockmap_ktls.c   |  53 ++----
 8 files changed, 108 insertions(+), 156 deletions(-)

-- 
2.43.0