#ifndef __NET_IP_TUNNELS_WRAPPER_H
#define __NET_IP_TUNNELS_WRAPPER_H 1

#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)
#include_next <net/ip_tunnels.h>
#else

#include <linux/if_tunnel.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/types.h>
#include <net/dsfield.h>
#include <net/flow.h>
#include <net/inet_ecn.h>
#include <net/ip.h>
#include <net/rtnetlink.h>

#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)

struct tnl_ptk_info {
	__be16 flags;
	__be16 proto;
	__be32 key;
	__be32 seq;
};

#define PACKET_RCVD	0
#define PACKET_REJECT	1

int iptunnel_xmit(struct rtable *rt,
		  struct sk_buff *skb,
		  __be32 src, __be32 dst, __u8 proto,
		  __u8 tos, __u8 ttl, __be16 df, bool xnet);

int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto);

#endif
#endif /* __NET_IP_TUNNELS_H */