include/net/gre.h

   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
  10 struct gre_protocol {
  11         int  (*handler)(struct sk_buff *skb);
  12         void (*err_handler)(struct sk_buff *skb, u32 info);
  13 };
  14
  15 int gre_add_protocol(const struct gre_protocol *proto, u8 version);
  16 int gre_del_protocol(const struct gre_protocol *proto, u8 version);
  17
  18 #endif