/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * NET        Generic infrastructure for Network protocols.
 *
 * Authors:    Arnaldo Carvalho de Melo <[email protected]>
 */
#ifndef _TIMEWAIT_SOCK_H
#define _TIMEWAIT_SOCK_H

#include <linux/slab.h>
#include <linux/bug.h>
#include <net/sock.h>

struct timewait_sock_ops {
    struct kmem_cache    *twsk_slab;
    char        *twsk_slab_name;
    const char    *typename;
    unsigned int    twsk_obj_size;
    int        (*twsk_unique)(struct sock *sk,
                       struct sock *sktw, void *twp);
    void        (*twsk_destructor)(struct sock *sk);
} __mutable_const;

static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
{
    if (sk->sk_prot->twsk_prot->twsk_unique != NULL)
        return sk->sk_prot->twsk_prot->twsk_unique(sk, sktw, twp);
    return 0;
}

static inline void twsk_destructor(struct sock *sk)
{
    if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
        sk->sk_prot->twsk_prot->twsk_destructor(sk);
}

#endif /* _TIMEWAIT_SOCK_H */