1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * NET		Generic infrastructure for Network protocols.
4  *
5  * Authors:	Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6  */
7 #ifndef _TIMEWAIT_SOCK_H
8 #define _TIMEWAIT_SOCK_H
9 
10 #include <linux/slab.h>
11 #include <linux/bug.h>
12 #include <net/sock.h>
13 
14 struct timewait_sock_ops {
15 	struct kmem_cache	*twsk_slab;
16 	char		*twsk_slab_name;
17 	unsigned int	twsk_obj_size;
18 	int		(*twsk_unique)(struct sock *sk,
19 				       struct sock *sktw, void *twp);
20 	void		(*twsk_destructor)(struct sock *sk);
21 };
22 
twsk_unique(struct sock * sk,struct sock * sktw,void * twp)23 static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
24 {
25 	if (sk->sk_prot->twsk_prot->twsk_unique != NULL)
26 		return sk->sk_prot->twsk_prot->twsk_unique(sk, sktw, twp);
27 	return 0;
28 }
29 
twsk_destructor(struct sock * sk)30 static inline void twsk_destructor(struct sock *sk)
31 {
32 	if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
33 		sk->sk_prot->twsk_prot->twsk_destructor(sk);
34 }
35 
36 #endif /* _TIMEWAIT_SOCK_H */
37