1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _NET_IPCOMP_H 3#define _NET_IPCOMP_H 4 5#include <linux/types.h> 6 7#define IPCOMP_SCRATCH_SIZE 65400 8 9struct crypto_comp; 10 11struct ipcomp_data { 12 u16 threshold; 13 struct crypto_comp * __percpu *tfms; 14}; 15 16struct ip_comp_hdr; 17struct sk_buff; 18struct xfrm_state; 19 20int ipcomp_input(struct xfrm_state *x, struct sk_buff *skb); 21int ipcomp_output(struct xfrm_state *x, struct sk_buff *skb); 22void ipcomp_destroy(struct xfrm_state *x); 23int ipcomp_init_state(struct xfrm_state *x); 24 25static inline struct ip_comp_hdr *ip_comp_hdr(const struct sk_buff *skb) 26{ 27 return (struct ip_comp_hdr *)skb_transport_header(skb); 28} 29 30#endif 31