mptcp: add last time fields in mptcp_info

Similar to tcpi_last_data_sent, tcpi_last_data_recv and tcpi_last_ack_recv exposed with TCP, this patch exposes the last time "an action happened" for MPTCP in mptcp_info, named mptcpi_last_data_sent, mptcpi_last_data_recv and mptcpi_last_ack_recv, calculated In mptcp_diag_fill_info() as the time deltas between now and the newly added last time fields in mptcp_sock. Closes: multipath-tcp#446 Signed-off-by: Geliang Tang <[email protected]>
geliangtang · Mar 22, 2024 · 21517f2 · 21517f2
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commit 21517f2
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diff --git a/include/memory/renesas-rpc-if.h b/include/memory/renesas-rpc-if.h
diff --git a/include/uapi/linux/mptcp.h b/include/uapi/linux/mptcp.h
@@ -58,6 +58,9 @@ struct mptcp_info {
 	__u64	mptcpi_bytes_received;
 	__u64	mptcpi_bytes_acked;
 	__u8	mptcpi_subflows_total;
+	__u32	mptcpi_last_data_sent;
+	__u32	mptcpi_last_data_recv;
+	__u32	mptcpi_last_ack_recv;
 };
 
 /* MPTCP Reset reason codes, rfc8684 */