[MPTCP] [RFC PATCH v3 02/16] tcp: Define IPPROTO_MPTCP

[MPTCP] [RFC PATCH v3 02/16] tcp: Define IPPROTO_MPTCP

[Mat Martineau]

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To open a MPTCP socket with socket(AF_INET, SOCK_STREAM, IPPROTO_MPTCP),
IPPROTO_MPTCP needs a value that differs from IPPROTO_TCP. The existing
IPPROTO numbers mostly map directly to IANA-specified protocol numbers.
MPTCP does not have a protocol number allocated because MPTCP packets
use the TCP protocol number. Use private number not used OTA.

Signed-off-by: Mat Martineau <mathew.j.martineau(a)linux.intel.com>
---
 include/uapi/linux/in.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/uapi/linux/in.h b/include/uapi/linux/in.h
index 48e8a225b985..f65975c801e5 100644
--- a/include/uapi/linux/in.h
+++ b/include/uapi/linux/in.h
@@ -64,6 +64,8 @@ enum {
 #define IPPROTO_BEETPH		IPPROTO_BEETPH
   IPPROTO_ENCAP = 98,		/* Encapsulation Header			*/
 #define IPPROTO_ENCAP		IPPROTO_ENCAP
+  IPPROTO_MPTCP = 99,		/* Multipath TCP connection 		*/
+#define IPPROTO_MPTCP		IPPROTO_MPTCP
   IPPROTO_PIM = 103,		/* Protocol Independent Multicast	*/
 #define IPPROTO_PIM		IPPROTO_PIM
   IPPROTO_COMP = 108,		/* Compression Header Protocol		*/
-- 
2.19.1