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#ifndef __NET_IP_TUNNELS_WRAPPER_H
#define __NET_IP_TUNNELS_WRAPPER_H 1
#include <linux/version.h>
#if defined(HAVE_GRE_HANDLE_OFFLOADS) && \
LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
/* RHEL6 and RHEL7 both has backported tunnel API but RHEL6 has
* older version, so avoid using RHEL6 backports.
*/
#define GRE_USE_KERNEL_GRE_HANDLE_OFFLOADS
#endif
#ifdef GRE_USE_KERNEL_GRE_HANDLE_OFFLOADS
#include_next <net/ip_tunnels.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0)
static inline int rpl_iptunnel_xmit(struct sock *sk, struct rtable *rt,
struct sk_buff *skb, __be32 src,
__be32 dst, __u8 proto, __u8 tos,
__u8 ttl, __be16 df, bool xnet)
{
#ifdef HAVE_IPTUNNEL_XMIT_NET
return iptunnel_xmit(NULL, rt, skb, src, dst, proto, tos, ttl, df);
#else
return iptunnel_xmit(rt, skb, src, dst, proto, tos, ttl, df, xnet);
#endif
}
#define iptunnel_xmit rpl_iptunnel_xmit
#endif
#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 sock *sk, 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
/* Not yet upstream */
#define TUNNEL_OAM __cpu_to_be16(0x0200)
#define TUNNEL_CRIT_OPT __cpu_to_be16(0x0400)
#define TUNNEL_OPTIONS_PRESENT __cpu_to_be16(0x0800)
#endif /* __NET_IP_TUNNELS_H */
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