[RFC,mptcp-next,00/10] Implement TCP_FASTOPEN_CONNECT for mptcp

Message

Benjamin Hesmans Sept. 8, 2022, 1:38 p.m. UTC

Add support for TCP_FASTOPEN_CONNECT for MPTCP

This series only consider data in the SYN and not the TFO cookies.
Dmytro SHYTYI has pending patch for the TFO cookies and the TCP_FASTOPEN
socket option.

Benjamin Hesmans (10):
  mptcp: add TCP_FASTOPEN_CONNECT socket option
  tcp: export tcp_sendmsg_fastopen
  mptcp: handle defer connect in mptcp_sendmsg
  mptcp: poll allow write call before actual connect
  mptcp: delay mptcp data_ack calculation
  mptcp: allow delayed data_ack calculation
  mptcp: TFO receive: bypass mapping check
  mptcp: allow data that can not be DATA_ACKed
  mptcp: force data_ready
  mptcp: test TFO

 include/net/tcp.h                        |  5 ++-
 net/ipv4/tcp.c                           |  5 +--
 net/ipv4/tcp_fastopen.c                  |  4 ++
 net/ipv4/tcp_minisocks.c                 | 29 ++++++++++++-
 net/mptcp/options.c                      |  1 +
 net/mptcp/protocol.c                     | 32 +++++++++++++-
 net/mptcp/protocol.h                     |  3 +-
 net/mptcp/sockopt.c                      | 18 +++++++-
 net/mptcp/subflow.c                      | 15 ++++++-
 tools/testing/selftests/net/mptcp/tfo.sh | 55 ++++++++++++++++++++++++
 10 files changed, 158 insertions(+), 9 deletions(-)
 create mode 100755 tools/testing/selftests/net/mptcp/tfo.sh

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