2 * INETPEER - A storage for permanent information about peers
4 * Authors: Andrey V. Savochkin <saw@msu.ru>
7 #ifndef _NET_INETPEER_H
8 #define _NET_INETPEER_H
10 #include <linux/types.h>
11 #include <linux/init.h>
12 #include <linux/jiffies.h>
13 #include <linux/spinlock.h>
14 #include <asm/atomic.h>
17 /* group together avl_left,avl_right,v4daddr to speedup lookups */
18 struct inet_peer *avl_left, *avl_right;
19 __be32 v4daddr; /* peer's address */
21 __u16 ip_id_count; /* IP ID for the next packet */
22 struct list_head unused;
23 __u32 dtime; /* the time of last use of not
24 * referenced entries */
26 atomic_t rid; /* Frag reception counter */
28 unsigned long tcp_ts_stamp;
31 void inet_initpeers(void) __init;
33 /* can be called with or without local BH being disabled */
34 struct inet_peer *inet_getpeer(__be32 daddr, int create);
36 /* can be called from BH context or outside */
37 extern void inet_putpeer(struct inet_peer *p);
39 extern spinlock_t inet_peer_idlock;
40 /* can be called with or without local BH being disabled */
41 static inline __u16 inet_getid(struct inet_peer *p, int more)
45 spin_lock_bh(&inet_peer_idlock);
47 p->ip_id_count += 1 + more;
48 spin_unlock_bh(&inet_peer_idlock);
52 #endif /* _NET_INETPEER_H */