1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _NET_ESPINTCP_H
3#define _NET_ESPINTCP_H
4
5#include <net/strparser.h>
6#include <linux/skmsg.h>
7
8void __init espintcp_init(void);
9
10int espintcp_push_skb(struct sock *sk, struct sk_buff *skb);
11int espintcp_queue_out(struct sock *sk, struct sk_buff *skb);
12bool tcp_is_ulp_esp(struct sock *sk);
13
14struct espintcp_msg {
15 struct sk_buff *skb;
16 struct sk_msg skmsg;
17 int offset;
18 int len;
19};
20
21struct espintcp_ctx {
22 struct strparser strp;
23 struct sk_buff_head ike_queue;
24 struct sk_buff_head out_queue;
25 struct espintcp_msg partial;
26 void (*saved_data_ready)(struct sock *sk);
27 void (*saved_write_space)(struct sock *sk);
28 void (*saved_destruct)(struct sock *sk);
29 struct work_struct work;
30 bool tx_running;
31};
32
33static inline struct espintcp_ctx *espintcp_getctx(const struct sock *sk)
34{
35 const struct inet_connection_sock *icsk = inet_csk(sk);
36
37 /* RCU is only needed for diag */
38 return (__force void *)icsk->icsk_ulp_data;
39}
40#endif
41