Date: Wed, 16 Aug 2023 23:28:40 +0200
From: Daniel Borkmann <daniel@...earbox.net>
To: davem@...emloft.net
Cc: kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	daniel@...earbox.net,
	ast@...nel.org,
	andrii@...nel.org,
	martin.lau@...ux.dev,
	netdev@...r.kernel.org,
	bpf@...r.kernel.org
Subject: pull-request: bpf-next 2023-08-16

Hi David, hi Jakub, hi Paolo, hi Eric,

The following pull-request contains BPF updates for your *net-next* tree.

We've added 17 non-merge commits during the last 6 day(s) which contain
a total of 20 files changed, 1179 insertions(+), 37 deletions(-).

The main changes are:

1) Add a BPF hook in sys_socket() to change the protocol ID from IPPROTO_TCP to
   IPPROTO_MPTCP to cover migration for legacy applications, from Geliang Tang.

2) Follow-up/fallout fix from the SO_REUSEPORT + bpf_sk_assign work to fix a splat
   on non-fullsock sks in inet[6]_steal_sock, from Lorenz Bauer.

3) Improvements to struct_ops links to avoid forcing presence of update/validate
   callbacks. Also add bpf_struct_ops fields documentation, from David Vernet.

4) Ensure libbpf sets close-on-exec flag on gzopen, from Marco Vedovati.

5) Several new tcx selftest additions and bpftool link show support for
   tcx and xdp links, from Daniel Borkmann.

6) Fix a smatch warning on uninitialized symbol in bpf_perf_link_fill_kprobe,
   from Yafang Shao.

7) BPF selftest fixes e.g. misplaced break in kfunc_call test, from Yipeng Zou.

8) Small cleanup to remove unused declaration bpf_link_new_file, from Yue Haibing.

9) Small typo fix to bpftool's perf help message, from Daniel T. Lee.

Please consider pulling these changes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git tags/for-netdev

Thanks a lot!

Also thanks to reporters, reviewers and testers of commits in this pull-request:

Dan Carpenter, Jiri Olsa, Kui-Feng Lee, Kumar Kartikeya Dwivedi, Li 
Zetao, Matthieu Baerts, Quentin Monnet, Yafang Shao, Yonghong Song

----------------------------------------------------------------

The following changes since commit 6231e47b6fadf42da2e7a45b8272e80aed53c444:

  tun: avoid high-order page allocation for packet header (2023-08-10 19:33:35 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git tags/for-netdev

for you to fetch changes up to de40537364c34fd665a0f00d156d24c6c0e89a66:

  Merge branch 'bpf: Force to MPTCP' (2023-08-16 11:42:35 -0700)

----------------------------------------------------------------
bpf-next-for-netdev

----------------------------------------------------------------
Daniel Borkmann (3):
      selftests/bpf: Add various more tcx test cases
      bpftool: Implement link show support for tcx
      bpftool: Implement link show support for xdp

Daniel T. Lee (1):
      bpftool: fix perf help message

David Vernet (2):
      bpf: Support default .validate() and .update() behavior for struct_ops links
      bpf: Document struct bpf_struct_ops fields

Geliang Tang (4):
      bpf: Add update_socket_protocol hook
      selftests/bpf: Add two mptcp netns helpers
      selftests/bpf: Fix error checks of mptcp open_and_load
      selftests/bpf: Add mptcpify test

Lorenz Bauer (1):
      net: Fix slab-out-of-bounds in inet[6]_steal_sock

Marco Vedovati (1):
      libbpf: Set close-on-exec flag on gzopen

Martin KaFai Lau (2):
      Merge branch 'Update and document struct_ops'
      Merge branch 'bpf: Force to MPTCP'

Yafang Shao (2):
      bpf: Fix uninitialized symbol in bpf_perf_link_fill_kprobe()
      selftests/bpf: Add selftest for fill_link_info

Yipeng Zou (2):
      selftests/bpf: Fix repeat option when kfunc_call verification fails
      selftests/bpf: Clean up fmod_ret in bench_rename test script

Yue Haibing (1):
      bpf: Remove unused declaration bpf_link_new_file()

 include/linux/bpf.h                                |  48 ++-
 include/net/inet6_hashtables.h                     |   2 +-
 include/net/inet_hashtables.h                      |   2 +-
 kernel/bpf/bpf_struct_ops.c                        |  15 +-
 kernel/bpf/syscall.c                               |   5 +-
 net/mptcp/bpf.c                                    |  15 +
 net/socket.c                                       |  26 +-
 tools/bpf/bpftool/link.c                           |  44 +++
 tools/bpf/bpftool/perf.c                           |   2 +-
 tools/lib/bpf/libbpf.c                             |   4 +-
 tools/testing/selftests/bpf/DENYLIST.aarch64       |   3 +
 .../selftests/bpf/benchs/run_bench_rename.sh       |   2 +-
 .../selftests/bpf/prog_tests/fill_link_info.c      | 342 +++++++++++++++++++++
 .../testing/selftests/bpf/prog_tests/kfunc_call.c  |   2 +-
 tools/testing/selftests/bpf/prog_tests/mptcp.c     | 180 +++++++++--
 tools/testing/selftests/bpf/prog_tests/tc_links.c  | 336 ++++++++++++++++++++
 tools/testing/selftests/bpf/prog_tests/tc_opts.c   | 110 +++++++
 tools/testing/selftests/bpf/progs/mptcpify.c       |  20 ++
 .../selftests/bpf/progs/test_fill_link_info.c      |  42 +++
 tools/testing/selftests/bpf/progs/test_tc_link.c   |  16 +
 20 files changed, 1179 insertions(+), 37 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/fill_link_info.c
 create mode 100644 tools/testing/selftests/bpf/progs/mptcpify.c
 create mode 100644 tools/testing/selftests/bpf/progs/test_fill_link_info.c

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