1#ifndef _NET_IPCOMP_H 2#define _NET_IPCOMP_H 3 4#include <linux/types.h> 5 6#define IPCOMP_SCRATCH_SIZE 65400 7 8struct crypto_comp; 9 10struct ipcomp_data { 11 u16 threshold; 12 struct crypto_comp * __percpu *tfms; 13}; 14 15struct ip_comp_hdr; 16struct sk_buff; 17struct xfrm_state; 18 19int ipcomp_input(struct xfrm_state *x, struct sk_buff *skb); 20int ipcomp_output(struct xfrm_state *x, struct sk_buff *skb); 21void ipcomp_destroy(struct xfrm_state *x); 22int ipcomp_init_state(struct xfrm_state *x); 23 24static inline struct ip_comp_hdr *ip_comp_hdr(const struct sk_buff *skb) 25{ 26 return (struct ip_comp_hdr *)skb_transport_header(skb); 27} 28 29#endif 30