1 #ifndef __NET_IP_TUNNELS_WRAPPER_H
2 #define __NET_IP_TUNNELS_WRAPPER_H 1
4 #include <linux/version.h>
5 #if defined(HAVE_GRE_HANDLE_OFFLOADS) && \
6 LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
7 /* RHEL6 and RHEL7 both has backported tunnel API but RHEL6 has
8 * older version, so avoid using RHEL6 backports.
10 #define GRE_USE_KERNEL_GRE_HANDLE_OFFLOADS
13 #ifdef GRE_USE_KERNEL_GRE_HANDLE_OFFLOADS
14 #include_next <net/ip_tunnels.h>
16 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0)
17 static inline int rpl_iptunnel_xmit(struct sock *sk, struct rtable *rt,
18 struct sk_buff *skb, __be32 src,
19 __be32 dst, __u8 proto, __u8 tos,
20 __u8 ttl, __be16 df, bool xnet)
22 #ifdef HAVE_IPTUNNEL_XMIT_NET
23 return iptunnel_xmit(NULL, rt, skb, src, dst, proto, tos, ttl, df);
25 return iptunnel_xmit(rt, skb, src, dst, proto, tos, ttl, df, xnet);
28 #define iptunnel_xmit rpl_iptunnel_xmit
33 #include <linux/if_tunnel.h>
34 #include <linux/netdevice.h>
35 #include <linux/skbuff.h>
36 #include <linux/types.h>
37 #include <net/dsfield.h>
39 #include <net/inet_ecn.h>
41 #include <net/rtnetlink.h>
43 #define TUNNEL_CSUM __cpu_to_be16(0x01)
44 #define TUNNEL_ROUTING __cpu_to_be16(0x02)
45 #define TUNNEL_KEY __cpu_to_be16(0x04)
46 #define TUNNEL_SEQ __cpu_to_be16(0x08)
47 #define TUNNEL_STRICT __cpu_to_be16(0x10)
48 #define TUNNEL_REC __cpu_to_be16(0x20)
49 #define TUNNEL_VERSION __cpu_to_be16(0x40)
50 #define TUNNEL_NO_KEY __cpu_to_be16(0x80)
51 #define TUNNEL_DONT_FRAGMENT __cpu_to_be16(0x0100)
61 #define PACKET_REJECT 1
63 int iptunnel_xmit(struct sock *sk, struct rtable *rt,
65 __be32 src, __be32 dst, __u8 proto,
66 __u8 tos, __u8 ttl, __be16 df, bool xnet);
68 int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto);
72 /* Not yet upstream */
73 #define TUNNEL_OAM __cpu_to_be16(0x0200)
74 #define TUNNEL_CRIT_OPT __cpu_to_be16(0x0400)
75 #define TUNNEL_OPTIONS_PRESENT __cpu_to_be16(0x0800)
77 #endif /* __NET_IP_TUNNELS_H */