[linux-block.git] / include / net / ipcomp.h

/* 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
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef _NET_IPCOMP_H
	3	#define _NET_IPCOMP_H
	4
949d6b40	5	#include <linux/skbuff.h>
9409f38a HX	6	#include <linux/types.h>
9409f38a HX	7
1da177e4 LT	8	#define IPCOMP_SCRATCH_SIZE 65400
1da177e4 LT	9
87bdc48d	10	struct crypto_comp;
949d6b40	11	struct ip_comp_hdr;
87bdc48d	12
1da177e4 LT	13	struct ipcomp_data {
1da177e4 LT	14	u16 threshold;
7d720c3e	15	struct crypto_comp * __percpu *tfms;
1da177e4 LT	16	};
1da177e4 LT	17
87bdc48d HX	18	struct ip_comp_hdr;
87bdc48d HX	19	struct sk_buff;
6fccab67 HX	20	struct xfrm_state;
	21
	22	int ipcomp_input(struct xfrm_state x, struct sk_buff skb);
	23	int ipcomp_output(struct xfrm_state x, struct sk_buff skb);
	24	void ipcomp_destroy(struct xfrm_state *x);
6ee55320	25	int ipcomp_init_state(struct xfrm_state x, struct netlink_ext_ack extack);
87bdc48d HX	26
	27	static inline struct ip_comp_hdr ip_comp_hdr(const struct sk_buff skb)
	28	{
	29	return (struct ip_comp_hdr *)skb_transport_header(skb);
	30	}
	31
1da177e4	32	#endif