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
 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