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 8 void __init espintcp_init(void); 9 10 int espintcp_push_skb(struct sock *sk, struct sk_buff *skb); 11 int espintcp_queue_out(struct sock *sk, struct sk_buff *skb); 12 bool tcp_is_ulp_esp(struct sock *sk); 13 14 struct espintcp_msg { 15 struct sk_buff *skb; 16 struct sk_msg skmsg; 17 int offset; 18 int len; 19 }; 20 21 struct 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 33 static inline struct espintcp_ctx *espintcp_getctx(const struct sock *sk) 34 { 35 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