uapi/iptunnel: make TUNNEL_FLAGS available

ip l add dev tun type gretap external
ip r a 10.0.0.1 encap ip dst 192.168.152.171 id 1000 dev gretap

For gretap Key example when the command set the id but don't set the
TUNNEL_KEY flags. There is no key field in the send packet

In the lwtunnel situation, some TUNNEL_FLAGS should can be set by
userspace

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h
index ecdc76669cfdde02f37158cbec5fbc681b3fc6ba..c7f0a5e6adf15996efcaecc951ebb448e9a1acc6 100644 (file)
--- a/include/uapi/linux/if_tunnel.h
+++ b/include/uapi/linux/if_tunnel.h
@@ -160,4 +160,24 @@ enum {
 };
 
 #define IFLA_VTI_MAX   (__IFLA_VTI_MAX - 1)
+
+#define TUNNEL_CSUM            __cpu_to_be16(0x01)
+#define TUNNEL_ROUTING         __cpu_to_be16(0x02)
+#define TUNNEL_KEY             __cpu_to_be16(0x04)
+#define TUNNEL_SEQ             __cpu_to_be16(0x08)
+#define TUNNEL_STRICT          __cpu_to_be16(0x10)
+#define TUNNEL_REC             __cpu_to_be16(0x20)
+#define TUNNEL_VERSION         __cpu_to_be16(0x40)
+#define TUNNEL_NO_KEY          __cpu_to_be16(0x80)
+#define TUNNEL_DONT_FRAGMENT    __cpu_to_be16(0x0100)
+#define TUNNEL_OAM             __cpu_to_be16(0x0200)
+#define TUNNEL_CRIT_OPT                __cpu_to_be16(0x0400)
+#define TUNNEL_GENEVE_OPT      __cpu_to_be16(0x0800)
+#define TUNNEL_VXLAN_OPT       __cpu_to_be16(0x1000)
+#define TUNNEL_NOCACHE         __cpu_to_be16(0x2000)
+#define TUNNEL_ERSPAN_OPT      __cpu_to_be16(0x4000)
+
+#define TUNNEL_OPTIONS_PRESENT \
+               (TUNNEL_GENEVE_OPT | TUNNEL_VXLAN_OPT | TUNNEL_ERSPAN_OPT)
+
 #endif /* _IF_TUNNEL_H_ */