timewait_sock.h 1.2 KB

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  1. /*
  2. * NET Generic infrastructure for Network protocols.
  3. *
  4. * Authors: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  5. *
  6. * This program is free software; you can redistribute it and/or
  7. * modify it under the terms of the GNU General Public License
  8. * as published by the Free Software Foundation; either version
  9. * 2 of the License, or (at your option) any later version.
  10. */
  11. #ifndef _TIMEWAIT_SOCK_H
  12. #define _TIMEWAIT_SOCK_H
  13. #include <linux/slab.h>
  14. #include <net/sock.h>
  15. struct timewait_sock_ops {
  16. struct kmem_cache *twsk_slab;
  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. static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
  23. {
  24. if (sk->sk_prot->twsk_prot->twsk_unique != NULL)
  25. return sk->sk_prot->twsk_prot->twsk_unique(sk, sktw, twp);
  26. return 0;
  27. }
  28. static inline void twsk_destructor(struct sock *sk)
  29. {
  30. BUG_ON(sk == NULL);
  31. BUG_ON(sk->sk_prot == NULL);
  32. BUG_ON(sk->sk_prot->twsk_prot == NULL);
  33. if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
  34. sk->sk_prot->twsk_prot->twsk_destructor(sk);
  35. }
  36. #endif /* _TIMEWAIT_SOCK_H */