[RFC PATCH net-next 02/33] tcp: Define IPPROTO_MPTCP

[Mat Martineau]

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.martin...@linux.intel.com>
---
 include/uapi/linux/in.h       | 2 ++
 tools/include/uapi/linux/in.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/include/uapi/linux/in.h b/include/uapi/linux/in.h
index e7ad9d350a28..44df6dc1ff1d 100644
--- a/include/uapi/linux/in.h
+++ b/include/uapi/linux/in.h
@@ -76,6 +76,8 @@ enum {
 #define IPPROTO_MPLS           IPPROTO_MPLS
   IPPROTO_RAW = 255,           /* Raw IP packets                       */
 #define IPPROTO_RAW            IPPROTO_RAW
+  IPPROTO_MPTCP = 262,         /* Multipath TCP connection             */
+#define IPPROTO_MPTCP          IPPROTO_MPTCP
   IPPROTO_MAX
 };
 #endif
diff --git a/tools/include/uapi/linux/in.h b/tools/include/uapi/linux/in.h
index e7ad9d350a28..44df6dc1ff1d 100644
--- a/tools/include/uapi/linux/in.h
+++ b/tools/include/uapi/linux/in.h
@@ -76,6 +76,8 @@ enum {
 #define IPPROTO_MPLS           IPPROTO_MPLS
   IPPROTO_RAW = 255,           /* Raw IP packets                       */
 #define IPPROTO_RAW            IPPROTO_RAW
+  IPPROTO_MPTCP = 262,         /* Multipath TCP connection             */
+#define IPPROTO_MPTCP          IPPROTO_MPTCP
   IPPROTO_MAX
 };
 #endif
-- 
2.22.0