1 files changed, 10 insertions, 2 deletions

diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h
index 60dbb200de60..361b9f0f20d7 100644
--- a/include/uapi/linux/if_tunnel.h
+++ b/include/uapi/linux/if_tunnel.h
@@ -28,8 +28,16 @@
 #define GRE_FLAGS       __cpu_to_be16(0x0078)
 #define GRE_VERSION     __cpu_to_be16(0x0007)
 
-#define GRE_VERSION_1   __cpu_to_be16(0x0001)
-#define GRE_PROTO_PPP   __cpu_to_be16(0x880b)
+#define GRE_IS_CSUM(f)          ((f) & GRE_CSUM)
+#define GRE_IS_ROUTING(f)       ((f) & GRE_ROUTING)
+#define GRE_IS_KEY(f)           ((f) & GRE_KEY)
+#define GRE_IS_SEQ(f)           ((f) & GRE_SEQ)
+#define GRE_IS_STRICT(f)        ((f) & GRE_STRICT)
+#define GRE_IS_REC(f)           ((f) & GRE_REC)
+#define GRE_IS_ACK(f)           ((f) & GRE_ACK)
+
+#define GRE_VERSION_1           __cpu_to_be16(0x0001)
+#define GRE_PROTO_PPP           __cpu_to_be16(0x880b)
 #define GRE_PPTP_KEY_MASK       __cpu_to_be32(0xffff)
 
 struct ip_tunnel_parm {