1#ifndef __LINUX_GRE_H
 2#define __LINUX_GRE_H
 3
 4#include <linux/skbuff.h>
 
 
 
 
 
 
 
 5
 6#define GREPROTO_CISCO		0
 7#define GREPROTO_PPTP		1
 8#define GREPROTO_MAX		2
 
 9
10struct gre_protocol {
11	int  (*handler)(struct sk_buff *skb);
12	void (*err_handler)(struct sk_buff *skb, u32 info);
13};
14
15int gre_add_protocol(const struct gre_protocol *proto, u8 version);
16int gre_del_protocol(const struct gre_protocol *proto, u8 version);
17
 
 
18#endif

 1#ifndef __LINUX_GRE_H
 2#define __LINUX_GRE_H
 3
 4#include <linux/skbuff.h>
 5#include <net/ip_tunnels.h>
 6
 7struct gre_base_hdr {
 8	__be16 flags;
 9	__be16 protocol;
10};
11#define GRE_HEADER_SECTION 4
12
13#define GREPROTO_CISCO		0
14#define GREPROTO_PPTP		1
15#define GREPROTO_MAX		2
16#define GRE_IP_PROTO_MAX	2
17
18struct gre_protocol {
19	int  (*handler)(struct sk_buff *skb);
20	void (*err_handler)(struct sk_buff *skb, u32 info);
21};
22
23int gre_add_protocol(const struct gre_protocol *proto, u8 version);
24int gre_del_protocol(const struct gre_protocol *proto, u8 version);
25
26struct net_device *gretap_fb_dev_create(struct net *net, const char *name,
27				       u8 name_assign_type);
28#endif