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[v2,mptcp-next,0/8] add cmsg support to receive path

Message ID 20210511133659.29982-1-fw@strlen.de
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Series add cmsg support to receive path | expand

Message

Florian Westphal May 11, 2021, 1:36 p.m. UTC 
Changes since v2:
 - fix indendation of a if line in patch 1 (Mat)
 - avoid useless conditional in patch 5 (Mat)

This adds setsockopt support for busypoll + and the various
SO_TIMESTAMP variants.

To reduce copy&paste, a few helper functions get exported for
mptcp sake.

Last patch extends the existing setsockopt test case to also
cover/enable SO_TIMESTAMP.

Florian Westphal (8):
  mptcp: enable busypoll from mptcp receive path
  sock: expose so_timestamp options for mptcp
  sock: expose so_timestamping options for mptcp
  mptcp: sockopt: propagate timestamp request to subflows
  mptcp: setsockopt: handle SOL_SOCKET in one place only
  tcp: export timestamp helpers for mptcp
  mptcp: receive path cmsg support
  selftests: mptcp_connect: add SO_TIMESTAMPNS cmsg support

 include/net/sock.h                            |   3 +
 include/net/tcp.h                             |   4 +
 net/core/sock.c                               |  97 ++++++-----
 net/ipv4/tcp.c                                |  10 +-
 net/mptcp/protocol.c                          |  35 +++-
 net/mptcp/sockopt.c                           | 150 ++++++++++--------
 .../selftests/net/mptcp/mptcp_connect.c       | 125 ++++++++++++++-
 .../selftests/net/mptcp/mptcp_sockopt.sh      |   4 +-
 8 files changed, 304 insertions(+), 124 deletions(-)