include/net/espintcp.h

   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