#ifndef __NET_FRAG_H__#define __NET_FRAG_H__ struct netns_frags {	int			nqueues;	atomic_t		mem;	struct list_head	lru_list; 	/* sysctls */	int			timeout;	int			high_thresh;	int			low_thresh;}; struct inet_frag_queue {	struct hlist_node	list;	struct netns_frags	*net;	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 */	struct sk_buff		*fragments_tail;	ktime_t			stamp;	int			len;        /* total length of orig datagram */	int			meat;	__u8			last_in;    /* first/last segment arrived? */ #define INET_FRAG_COMPLETE	4#define INET_FRAG_FIRST_IN	2#define INET_FRAG_LAST_IN	1}; #define INETFRAGS_HASHSZ		64 struct inet_frags {	struct hlist_head	hash[INETFRAGS_HASHSZ];	rwlock_t		lock;	u32			rnd;	int			qsize;	int			secret_interval;	struct timer_list	secret_timer; 	unsigned int		(*hashfn)(struct inet_frag_queue *);	void			(*constructor)(struct inet_frag_queue *q,						void *arg);	void			(*destructor)(struct inet_frag_queue *);	void			(*skb_free)(struct sk_buff *);	bool			(*match)(struct inet_frag_queue *q, void *arg);	void			(*frag_expire)(unsigned long data);}; void inet_frags_init(struct inet_frags *);void inet_frags_fini(struct inet_frags *); void inet_frags_init_net(struct netns_frags *nf);void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f); void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);void inet_frag_destroy(struct inet_frag_queue *q,				struct inet_frags *f, int *work);int inet_frag_evictor(struct netns_frags *nf, struct inet_frags *f);struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,		struct inet_frags *f, void *key, unsigned int hash)	__releases(&f->lock); static inline void inet_frag_put(struct inet_frag_queue *q, struct inet_frags *f){	if (atomic_dec_and_test(&q->refcnt))		inet_frag_destroy(q, f, NULL);} #endif