#ifndef __NET_UDP_TUNNEL_H
#define __NET_UDP_TUNNEL_H

struct udp_port_cfg {
	u8			family;

	/* Used only for kernel-created sockets */
	union {
		struct in_addr		local_ip;
#if IS_ENABLED(CONFIG_IPV6)
		struct in6_addr		local_ip6;
#endif
	};

	union {
		struct in_addr		peer_ip;
#if IS_ENABLED(CONFIG_IPV6)
		struct in6_addr		peer_ip6;
#endif
	};

	__be16			local_udp_port;
	__be16			peer_udp_port;
	unsigned int		use_udp_checksums:1,
				use_udp6_tx_checksums:1,
				use_udp6_rx_checksums:1;
};

static inline void udp_tunnel_gro_complete(struct sk_buff *skb, int nhoff)
{
	struct udphdr *uh;

	uh = (struct udphdr *)(skb->data + nhoff - sizeof(struct udphdr));
	skb_shinfo(skb)->gso_type |= uh->check ?
				SKB_GSO_UDP_TUNNEL_CSUM : SKB_GSO_UDP_TUNNEL;
}

int udp_sock_create(struct net *net, struct udp_port_cfg *cfg,
		    struct socket **sockp);

#endif