4 struct inet_frag_queue {
5 struct hlist_node list;
6 struct list_head lru_list; /* lru list member */
9 struct timer_list timer; /* when will this queue expire? */
10 struct sk_buff *fragments; /* list of received fragments */
12 int len; /* total length of orig datagram */
14 __u8 last_in; /* first/last segment arrived? */
21 #define INETFRAGS_HASHSZ 64
23 struct inet_frags_ctl {
31 struct list_head lru_list;
32 struct hlist_head hash[INETFRAGS_HASHSZ];
38 struct timer_list secret_timer;
39 struct inet_frags_ctl *ctl;
41 unsigned int (*hashfn)(struct inet_frag_queue *);
42 void (*destructor)(struct inet_frag_queue *);
43 void (*skb_free)(struct sk_buff *);
44 int (*equal)(struct inet_frag_queue *q1,
45 struct inet_frag_queue *q2);
46 void (*frag_expire)(unsigned long data);
49 void inet_frags_init(struct inet_frags *);
50 void inet_frags_fini(struct inet_frags *);
52 void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);
53 void inet_frag_destroy(struct inet_frag_queue *q,
54 struct inet_frags *f, int *work);
55 int inet_frag_evictor(struct inet_frags *f);
56 struct inet_frag_queue *inet_frag_intern(struct inet_frag_queue *q,
57 struct inet_frags *f, unsigned int hash);
58 struct inet_frag_queue *inet_frag_alloc(struct inet_frags *f);
60 static inline void inet_frag_put(struct inet_frag_queue *q, struct inet_frags *f)
62 if (atomic_dec_and_test(&q->refcnt))
63 inet_frag_destroy(q, f, NULL);