ipcomp.h

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#ifndef _NET_IPCOMP_H
#define _NET_IPCOMP_H

#include <linux/types.h>

#define IPCOMP_SCRATCH_SIZE     65400

struct crypto_comp;

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);

static inline struct ip_comp_hdr *ip_comp_hdr(const struct sk_buff *skb)
{
    return (struct ip_comp_hdr *)skb_transport_header(skb);
}

#endif