| /* SPDX-License-Identifier: GPL-2.0 */ | 
 | #ifndef __NET_FOU_H | 
 | #define __NET_FOU_H | 
 |  | 
 | #include <linux/skbuff.h> | 
 |  | 
 | #include <net/flow.h> | 
 | #include <net/gue.h> | 
 | #include <net/ip_tunnels.h> | 
 | #include <net/udp.h> | 
 |  | 
 | size_t fou_encap_hlen(struct ip_tunnel_encap *e); | 
 | size_t gue_encap_hlen(struct ip_tunnel_encap *e); | 
 |  | 
 | int __fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, | 
 | 		       u8 *protocol, __be16 *sport, int type); | 
 | int __gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, | 
 | 		       u8 *protocol, __be16 *sport, int type); | 
 |  | 
 | #endif |