[PATCH mptcp-next v4 0/7] BPF 'force to MPTCP'

[Geliang Tang <geliang.tang@suse.com>]

v4:
 - add hooks in __sock_create().

v3:
 - add a wrapper socket_create(), the bpf hooks will added in this
   wrapper.

v2:
 - Address issue #79 "allow 'force to MPTCP' mode: BPF".
 - Define the prog in patch 3 in SEC "cgroup/sock_create" instead of
  "sockops".
 - Update other patches correspondingly.

v1:

This series depends on the two netns patches, should be inserted before
the BPF scheduler series:
  selftests/bpf: use random netns name for mptcp
  selftests/bpf: add two mptcp netns helpers
  bpf: Add bpf_mptcpify helper
  selftests/bpf: Test bpf_mptcpify helper
  selftests/bpf: Add mptcpify selftest
  mptcp: refactor push_pending logic

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/79

Geliang Tang (7):
  bpf: Add new prog type sockinit
  bpf: Run a sockinit program
  net: socket: run sockinit hooks
  libbpf: Support sockinit hook
  selftests/bpf: Add mptcpify program
  Squash to "selftests/bpf: add two mptcp netns helpers"
  selftests/bpf: Add mptcpify selftest

 include/linux/bpf-cgroup-defs.h               |   1 +
 include/linux/bpf-cgroup.h                    |  14 ++
 include/linux/bpf_types.h                     |   2 +
 include/uapi/linux/bpf.h                      |   8 ++
 kernel/bpf/cgroup.c                           |  90 +++++++++++++
 kernel/bpf/syscall.c                          |   7 +
 kernel/bpf/verifier.c                         |   1 +
 net/socket.c                                  |   6 +
 tools/include/uapi/linux/bpf.h                |   8 ++
 tools/lib/bpf/libbpf.c                        |   3 +
 tools/lib/bpf/libbpf_probes.c                 |   1 +
 .../bpf/cgroup_getset_retval_hooks.h          |   1 +
 .../testing/selftests/bpf/prog_tests/mptcp.c  | 124 +++++++++++++++---
 .../selftests/bpf/prog_tests/section_names.c  |   5 +
 tools/testing/selftests/bpf/progs/mptcpify.c  |  26 ++++
 15 files changed, 277 insertions(+), 20 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/progs/mptcpify.c

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2.35.3