7 struct list_head lru_list;
15 struct inet_frag_queue {
16 struct hlist_node list;
17 struct netns_frags *net;
18 struct list_head lru_list; /* lru list member */
21 struct timer_list timer; /* when will this queue expire? */
22 struct sk_buff *fragments; /* list of received fragments */
24 int len; /* total length of orig datagram */
26 __u8 last_in; /* first/last segment arrived? */
28 #define INET_FRAG_COMPLETE 4
29 #define INET_FRAG_FIRST_IN 2
30 #define INET_FRAG_LAST_IN 1
33 #define INETFRAGS_HASHSZ 64
36 struct hlist_head hash[INETFRAGS_HASHSZ];
41 struct timer_list secret_timer;
43 unsigned int (*hashfn)(struct inet_frag_queue *);
44 void (*constructor)(struct inet_frag_queue *q,
46 void (*destructor)(struct inet_frag_queue *);
47 void (*skb_free)(struct sk_buff *);
48 int (*match)(struct inet_frag_queue *q,
50 void (*frag_expire)(unsigned long data);
53 void inet_frags_init(struct inet_frags *);
54 void inet_frags_fini(struct inet_frags *);
56 void inet_frags_init_net(struct netns_frags *nf);
57 void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f);
59 void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);
60 void inet_frag_destroy(struct inet_frag_queue *q,
61 struct inet_frags *f, int *work);
62 int inet_frag_evictor(struct netns_frags *nf, struct inet_frags *f);
63 struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
64 struct inet_frags *f, void *key, unsigned int hash);
66 static inline void inet_frag_put(struct inet_frag_queue *q, struct inet_frags *f)
68 if (atomic_dec_and_test(&q->refcnt))
69 inet_frag_destroy(q, f, NULL);