/* 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