tcp: Add MPTCP option number

TCP option 30 is allocated for MPTCP by the IANA.

Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 7df37e2fddca40621779e6dd8943d1a7451698dc..85f1d7ff6e8bf2f9bcbe350fc5beaf2d2eab63a1 100644 (file)
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -182,6 +182,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo);
 #define TCPOPT_SACK             5       /* SACK Block */
 #define TCPOPT_TIMESTAMP       8       /* Better RTT estimations/PAWS */
 #define TCPOPT_MD5SIG          19      /* MD5 Signature (RFC2385) */
+#define TCPOPT_MPTCP           30      /* Multipath TCP (RFC6824) */
 #define TCPOPT_FASTOPEN                34      /* Fast open (RFC7413) */
 #define TCPOPT_EXP             254     /* Experimental */
 /* Magic number to be after the option value for sharing TCP