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 */
23 struct sk_buff *fragments_tail;
25 int len; /* total length of orig datagram */
27 __u8 last_in; /* first/last segment arrived? */
29 #define INET_FRAG_COMPLETE 4
30 #define INET_FRAG_FIRST_IN 2
31 #define INET_FRAG_LAST_IN 1
36 #define INETFRAGS_HASHSZ 64
39 struct hlist_head hash[INETFRAGS_HASHSZ];
44 struct timer_list secret_timer;
46 unsigned int (*hashfn)(struct inet_frag_queue *);
47 void (*constructor)(struct inet_frag_queue *q,
49 void (*destructor)(struct inet_frag_queue *);
50 void (*skb_free)(struct sk_buff *);
51 bool (*match)(struct inet_frag_queue *q, void *arg);
52 void (*frag_expire)(unsigned long data);
55 void inet_frags_init(struct inet_frags *);
56 void inet_frags_fini(struct inet_frags *);
58 void inet_frags_init_net(struct netns_frags *nf);
59 void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f);
61 void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);
62 void inet_frag_destroy(struct inet_frag_queue *q,
63 struct inet_frags *f, int *work);
64 int inet_frag_evictor(struct netns_frags *nf, struct inet_frags *f, bool force);
65 struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
66 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);