[v8] mptcp: Fast Open Mechanism

[RFC PATCH mptcp-next v8 0/7] mptcp: Fast Open Mechanism

Dmytro Shytyi posted 7 patches 1 year, 7 months ago

Diff against v3 v4 v6 v7 v9 v12 v13 v14 v14 v15
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Patches applied successfully (tree, apply log)
git fetch https://github.com/multipath-tcp/mptcp_net-next tags/patchew/20220920125243.2880-1-dmytro@shytyi.net

Maintainers: Eric Dumazet <edumazet@google.com>, "David S. Miller" <davem@davemloft.net>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>, David Ahern <dsahern@kernel.org>, Mat Martineau <mathew.j.martineau@linux.intel.com>, Matthieu Baerts <matthieu.baerts@tessares.net>, Shuah Khan <shuah@kernel.org>

There is a newer version of this series

include/net/tcp.h                             |  5 +-
net/ipv4/tcp.c                                | 18 +++-
net/ipv4/tcp_fastopen.c                       | 55 +++++++++--
net/ipv4/tcp_input.c                          | 11 ++-
net/mptcp/Makefile                            |  2 +-
net/mptcp/fastopen.c                          | 46 +++++++++
net/mptcp/options.c                           |  9 ++
net/mptcp/protocol.c                          | 19 ++--
net/mptcp/protocol.h                          | 14 ++-
net/mptcp/sockopt.c                           |  3 +
tools/testing/selftests/net/mptcp/mptfo.sh    | 13 +++
.../selftests/net/mptcp/mptfo_initiator.c     | 41 ++++++++
.../selftests/net/mptcp/mptfo_listener.c      | 98 +++++++++++++++++++
13 files changed, 311 insertions(+), 23 deletions(-)
create mode 100644 net/mptcp/fastopen.c
create mode 100644 tools/testing/selftests/net/mptcp/mptfo.sh
create mode 100644 tools/testing/selftests/net/mptcp/mptfo_initiator.c
create mode 100644 tools/testing/selftests/net/mptcp/mptfo_listener.c

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[RFC PATCH mptcp-next v8 0/7] mptcp: Fast Open Mechanism

Posted by Dmytro Shytyi 1 year, 7 months ago

[PATCH v8] includes "client-server" partial support for:
1. MPTCP cookie request from client (seems OK).
2. MPTCP cookie offering from server (seems OK).
3. MPTCP SYN+DATA+COOKIE from client (seems OK).
4. subsequent write + read on the opened socket (seems OK).
===Changes between v7 and v8
- We change from 0impact approach on existing TCP code to
  full reusage of existing and available functions.
- Code is refactored (Max. reuse of existing linux kernel code).
- fastopen.c is reduced to minima.
- Other comments from mailing list are coming in the next version.
===Future work
-Adress the appearance of "MPTCP FIN" as duplicated acks.
-Integrate presented in the last patch selftests. 

Dmytro Shytyi (7):
  add mptcp_stream_connect to protocol.h
  add mptcp_setsockopt_fastopen
  reuse tcp_sendmsg_fastopen()
  mptfo variables for msk, options. Fix loop retrans
  Fix unxpctd val of subflow->map_seq(dscrd packet)
  add skb to mskq in tcp_fastopen_add_skb()
  selftests: mptfo initiator/listener

 include/net/tcp.h                             |  5 +-
 net/ipv4/tcp.c                                | 18 +++-
 net/ipv4/tcp_fastopen.c                       | 55 +++++++++--
 net/ipv4/tcp_input.c                          | 11 ++-
 net/mptcp/Makefile                            |  2 +-
 net/mptcp/fastopen.c                          | 46 +++++++++
 net/mptcp/options.c                           |  9 ++
 net/mptcp/protocol.c                          | 19 ++--
 net/mptcp/protocol.h                          | 14 ++-
 net/mptcp/sockopt.c                           |  3 +
 tools/testing/selftests/net/mptcp/mptfo.sh    | 13 +++
 .../selftests/net/mptcp/mptfo_initiator.c     | 41 ++++++++
 .../selftests/net/mptcp/mptfo_listener.c      | 98 +++++++++++++++++++
 13 files changed, 311 insertions(+), 23 deletions(-)
 create mode 100644 net/mptcp/fastopen.c
 create mode 100644 tools/testing/selftests/net/mptcp/mptfo.sh
 create mode 100644 tools/testing/selftests/net/mptcp/mptfo_initiator.c
 create mode 100644 tools/testing/selftests/net/mptcp/mptfo_listener.c

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2.25.1