timewait_sock.h

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/*
 * NET      Generic infrastructure for Network protocols.
 *
 * Authors: Arnaldo Carvalho de Melo <[email protected]>
 *
 *      This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License
 *      as published by the Free Software Foundation; either version
 *      2 of the License, or (at your option) any later version.
 */
#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;
    unsigned int    twsk_obj_size;
    int     (*twsk_unique)(struct sock *sk,
                       struct sock *sktw, void *twp);
    void        (*twsk_destructor)(struct sock *sk);
};

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)
{
    BUG_ON(sk == NULL);
    BUG_ON(sk->sk_prot == NULL);
    BUG_ON(sk->sk_prot->twsk_prot == NULL);
    if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
        sk->sk_prot->twsk_prot->twsk_destructor(sk);
}

#endif /* _TIMEWAIT_SOCK_H */