Multipath TCP (RFC 6824) support

This commit adds the support of Multipath TCP (MPTCP). MPTCP is a new
extension to TCP standardized at the IETF. MPTCP allows to use several IP
addresses at the same time by distributing data across several subflows (TCP
connections) while still presenting the standard TCP socket API to the
application. Its benefits are better resource utilization, better throughput
and smoother reaction to failures.

1 files changed, 1 insertions, 1 deletions

diff --git a/tcp.h b/tcp.h
index 92d505ae..6b206feb 100644
--- a/tcp.h
+++ b/tcp.h
@@ -85,7 +85,7 @@ struct tcphdr {
 #define TCPOPT_AUTH             20      /* Enhanced AUTH option */
 #define	TCPOPT_UTO		28	/* tcp user timeout (rfc5482) */
 #define	   TCPOLEN_UTO			4
-
+#define	TCPOPT_MPTCP		30	/* MPTCP options */
 
 #define TCPOPT_TSTAMP_HDR	\
     (TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP)