These patches from Geliang add support for the "last time" field in MPTCP Info, and verify that the counters look valid.
Patch 1 adds these counters: last_data_sent, last_data_recv and last_ack_recv. They are available in the MPTCP Info, so exposed via getsockopt(MPTCP_INFO) and the Netlink Diag interface.
Patch 2 adds a test in diag.sh MPTCP selftest, to check that the counters have moved by at least 250ms, after having waited twice that time.
Signed-off-by: Matthieu Baerts (NGI0) matttbe@kernel.org --- Geliang Tang (2): mptcp: add last time fields in mptcp_info selftests: mptcp: test last time mptcp_info
include/uapi/linux/mptcp.h | 4 +++ net/mptcp/options.c | 1 + net/mptcp/protocol.c | 7 ++++ net/mptcp/protocol.h | 3 ++ net/mptcp/sockopt.c | 4 +++ tools/testing/selftests/net/mptcp/diag.sh | 53 +++++++++++++++++++++++++++++++ 6 files changed, 72 insertions(+) --- base-commit: d76c740b2eaaddc5fc3a8b21eaec5b6b11e8c3f5 change-id: 20240405-upstream-net-next-20240405-mptcp-last-time-info-9b03618e08f1
Best regards,