14 struct inet_frag_queue {
15 struct hlist_node list;
16 struct netns_frags *net;
17 struct list_head lru_list; /* lru list member */
20 struct timer_list timer; /* when will this queue expire? */
21 struct sk_buff *fragments; /* list of received fragments */
23 int len; /* total length of orig datagram */
25 __u8 last_in; /* first/last segment arrived? */
32 #define INETFRAGS_HASHSZ 64
34 struct inet_frags_ctl {
39 struct list_head lru_list;
40 struct hlist_head hash[INETFRAGS_HASHSZ];
44 struct timer_list secret_timer;
45 struct inet_frags_ctl *ctl;
47 unsigned int (*hashfn)(struct inet_frag_queue *);
48 void (*constructor)(struct inet_frag_queue *q,
50 void (*destructor)(struct inet_frag_queue *);
51 void (*skb_free)(struct sk_buff *);
52 int (*match)(struct inet_frag_queue *q,
54 void (*frag_expire)(unsigned long data);
57 void inet_frags_init(struct inet_frags *);
58 void inet_frags_fini(struct inet_frags *);
60 void inet_frags_init_net(struct netns_frags *nf);
62 void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);
63 void inet_frag_destroy(struct inet_frag_queue *q,
64 struct inet_frags *f, int *work);
65 int inet_frag_evictor(struct netns_frags *nf, struct inet_frags *f);
66 struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
67 struct inet_frags *f, void *key, unsigned int hash);
69 static inline void inet_frag_put(struct inet_frag_queue *q, struct inet_frags *f)
71 if (atomic_dec_and_test(&q->refcnt))
72 inet_frag_destroy(q, f, NULL);