[deliverable/linux.git] / include / net / inet_frag.h

#ifndef __NET_FRAG_H__
#define __NET_FRAG_H__

struct inet_frag_queue {
	struct hlist_node	list;
	struct list_head	lru_list;   /* lru list member */
	spinlock_t		lock;
	atomic_t		refcnt;
	struct timer_list	timer;      /* when will this queue expire? */
	struct sk_buff		*fragments; /* list of received fragments */
	ktime_t			stamp;
	int			len;        /* total length of orig datagram */
	int			meat;
	__u8			last_in;    /* first/last segment arrived? */

#define COMPLETE		4
#define FIRST_IN		2
#define LAST_IN			1
};

#define INETFRAGS_HASHSZ		64

struct inet_frags_ctl {
	int high_thresh;
	int low_thresh;
	int timeout;
	int secret_interval;
};

struct inet_frags {
	struct list_head	lru_list;
	struct hlist_head	hash[INETFRAGS_HASHSZ];
	rwlock_t		lock;
	u32			rnd;
	int			nqueues;
	atomic_t		mem;
	struct timer_list	secret_timer;
	struct inet_frags_ctl	*ctl;

	unsigned int		(*hashfn)(struct inet_frag_queue *);
};

void inet_frags_init(struct inet_frags *);
void inet_frags_fini(struct inet_frags *);

void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);

#endif
Commit	Line	Data
5ab11c98 PE	1	#ifndef __NET_FRAG_H__
	2	#define __NET_FRAG_H__
	3
	4	struct inet_frag_queue {
	5	struct hlist_node list;
	6	struct list_head lru_list; /* lru list member */
	7	spinlock_t lock;
	8	atomic_t refcnt;
	9	struct timer_list timer; /* when will this queue expire? */
	10	struct sk_buff fragments; / list of received fragments */
	11	ktime_t stamp;
	12	int len; /* total length of orig datagram */
	13	int meat;
	14	__u8 last_in; /* first/last segment arrived? */
	15
	16	#define COMPLETE 4
	17	#define FIRST_IN 2
	18	#define LAST_IN 1
	19	};
	20
7eb95156 PE	21	#define INETFRAGS_HASHSZ 64
7eb95156 PE	22
04128f23 PE	23	struct inet_frags_ctl {
	24	int high_thresh;
	25	int low_thresh;
	26	int timeout;
	27	int secret_interval;
	28	};
	29
7eb95156 PE	30	struct inet_frags {
	31	struct list_head lru_list;
	32	struct hlist_head hash[INETFRAGS_HASHSZ];
	33	rwlock_t lock;
	34	u32 rnd;
	35	int nqueues;
	36	atomic_t mem;
	37	struct timer_list secret_timer;
04128f23	38	struct inet_frags_ctl *ctl;
321a3a99 PE	39
321a3a99 PE	40	unsigned int (hashfn)(struct inet_frag_queue );
7eb95156 PE	41	};
	42
	43	void inet_frags_init(struct inet_frags *);
	44	void inet_frags_fini(struct inet_frags *);
	45
277e650d PE	46	void inet_frag_kill(struct inet_frag_queue q, struct inet_frags f);
277e650d PE	47
5ab11c98	48	#endif