ipv6: route: per route IP tunnel metadata via lightweight tunnel

Allow specification of per route IP tunnel instructions also for IPv6.
This complements commit 3093fbe7ff4b ("route: Per route IP tunnel metadata
via lightweight tunnel").

Signed-off-by: Jiri Benc <jbenc@redhat.com>
CC: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/uapi/linux/lwtunnel.h b/include/uapi/linux/lwtunnel.h
index aa84ca3..34141a5 100644
--- a/include/uapi/linux/lwtunnel.h
+++ b/include/uapi/linux/lwtunnel.h
@@ -8,6 +8,7 @@
 	LWTUNNEL_ENCAP_MPLS,
 	LWTUNNEL_ENCAP_IP,
 	LWTUNNEL_ENCAP_ILA,
+	LWTUNNEL_ENCAP_IP6,
 	__LWTUNNEL_ENCAP_MAX,
 };
 
@@ -28,4 +29,19 @@
 
 #define LWTUNNEL_IP_MAX (__LWTUNNEL_IP_MAX - 1)
 
+enum lwtunnel_ip6_t {
+	LWTUNNEL_IP6_UNSPEC,
+	LWTUNNEL_IP6_ID,
+	LWTUNNEL_IP6_DST,
+	LWTUNNEL_IP6_SRC,
+	LWTUNNEL_IP6_HOPLIMIT,
+	LWTUNNEL_IP6_TC,
+	LWTUNNEL_IP6_SPORT,
+	LWTUNNEL_IP6_DPORT,
+	LWTUNNEL_IP6_FLAGS,
+	__LWTUNNEL_IP6_MAX,
+};
+
+#define LWTUNNEL_IP6_MAX (__LWTUNNEL_IP6_MAX - 1)
+
 #endif /* _UAPI_LWTUNNEL_H_ */