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

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NET_ESP_H
#define _NET_ESP_H

#include <linux/skbuff.h>

struct ip_esp_hdr;

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

struct esp_info {
	struct	ip_esp_hdr *esph;
	__be64	seqno;
	int	tfclen;
	int	tailen;
	int	plen;
	int	clen;
	int 	len;
	int 	nfrags;
	__u8	proto;
	bool	inplace;
};

int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
int esp_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
int esp_input_done2(struct sk_buff *skb, int err);
int esp6_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
int esp6_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
int esp6_input_done2(struct sk_buff *skb, int err);
#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef _NET_ESP_H
	3	#define _NET_ESP_H
	4
38320c70	5	#include <linux/skbuff.h>
1da177e4	6
87bdc48d HX	7	struct ip_esp_hdr;
	8
	9	static inline struct ip_esp_hdr ip_esp_hdr(const struct sk_buff skb)
	10	{
	11	return (struct ip_esp_hdr *)skb_transport_header(skb);
	12	}
	13
fca11ebd SK	14	struct esp_info {
	15	struct ip_esp_hdr *esph;
	16	__be64 seqno;
	17	int tfclen;
	18	int tailen;
	19	int plen;
	20	int clen;
	21	int len;
	22	int nfrags;
	23	__u8 proto;
	24	bool inplace;
	25	};
	26
	27	int esp_output_head(struct xfrm_state x, struct sk_buff skb, struct esp_info *esp);
	28	int esp_output_tail(struct xfrm_state x, struct sk_buff skb, struct esp_info *esp);
	29	int esp_input_done2(struct sk_buff *skb, int err);
383d0350 SK	30	int esp6_output_head(struct xfrm_state x, struct sk_buff skb, struct esp_info *esp);
	31	int esp6_output_tail(struct xfrm_state x, struct sk_buff skb, struct esp_info *esp);
	32	int esp6_input_done2(struct sk_buff *skb, int err);
1da177e4	33	#endif