[v2,mptcp-next,0/4] TCP_INQ support

Message

Florian Westphal Nov. 11, 2021, 3:14 p.m. UTC

This adds TCP_INQ for mptcp and extends the selftest infra.
Patch 3 adds ioctls to retrieve amount of in-sequence bytes
ready to for read() (older version of TCP_INQ) and counters for
unsent and unacked byte count.

Last patch is new in v2, its a more specific TCP_INQ test case.
See individual patches for v2-changes.

Florian Westphal (4):
  mptcp: add TCP_INQ cmsg support
  selftests: mptcp: add TCP_INQ support
  mptcp: add SIOCINQ, OUTQ and OUTQNSD ioctls
  selftests: mptcp: add inq test case

 net/mptcp/protocol.c                          |  89 ++-
 net/mptcp/protocol.h                          |   1 +
 net/mptcp/sockopt.c                           |  37 ++
 tools/testing/selftests/net/mptcp/.gitignore  |   1 +
 tools/testing/selftests/net/mptcp/Makefile    |   2 +-
 .../selftests/net/mptcp/mptcp_connect.c       |  58 +-
 tools/testing/selftests/net/mptcp/mptcp_inq.c | 603 ++++++++++++++++++
 .../selftests/net/mptcp/mptcp_sockopt.sh      |  44 +-
 8 files changed, 830 insertions(+), 5 deletions(-)
 create mode 100644 tools/testing/selftests/net/mptcp/mptcp_inq.c