[mirror_ubuntu-bionic-kernel.git] / include / net / ipcomp.h

/* SPDX-License-Identifier: GPL-2.0 */
#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
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef _NET_IPCOMP_H
	3	#define _NET_IPCOMP_H
	4
9409f38a HX	5	#include <linux/types.h>
9409f38a HX	6
1da177e4 LT	7	#define IPCOMP_SCRATCH_SIZE 65400
1da177e4 LT	8
87bdc48d HX	9	struct crypto_comp;
87bdc48d HX	10
1da177e4 LT	11	struct ipcomp_data {
1da177e4 LT	12	u16 threshold;
7d720c3e	13	struct crypto_comp * __percpu *tfms;
1da177e4 LT	14	};
1da177e4 LT	15
87bdc48d HX	16	struct ip_comp_hdr;
87bdc48d HX	17	struct sk_buff;
6fccab67 HX	18	struct xfrm_state;
	19
	20	int ipcomp_input(struct xfrm_state x, struct sk_buff skb);
	21	int ipcomp_output(struct xfrm_state x, struct sk_buff skb);
	22	void ipcomp_destroy(struct xfrm_state *x);
	23	int ipcomp_init_state(struct xfrm_state *x);
87bdc48d HX	24
	25	static 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
1da177e4	30	#endif