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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NET_IPCOMP_H
#define _NET_IPCOMP_H
#include <linux/skbuff.h>
#include <linux/types.h>
#define IPCOMP_SCRATCH_SIZE 65400
struct crypto_comp;
struct ip_comp_hdr;
struct ipcomp_data {
u16 threshold;
struct crypto_comp * __percpu *tfms;
};
struct ip_comp_hdr;
struct sk_buff;
struct xfrm_state;
int ipcomp_input(struct xfrm_state *x, struct sk_buff *skb);
int ipcomp_output(struct xfrm_state *x, struct sk_buff *skb);
void ipcomp_destroy(struct xfrm_state *x);
int ipcomp_init_state(struct xfrm_state *x, struct netlink_ext_ack *extack);
static inline struct ip_comp_hdr *ip_comp_hdr(const struct sk_buff *skb)
{
return (struct ip_comp_hdr *)skb_transport_header(skb);
}
#endif