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 struct list_head unused;
22 __u32 dtime; /* the time of last use of not
23 * referenced entries */
25 atomic_t rid; /* Frag reception counter */
26 atomic_t ip_id_count; /* IP ID for the next packet */
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 /* can be called with or without local BH being disabled */
40 static inline __u16 inet_getid(struct inet_peer *p, int more)
43 return atomic_add_return(more, &p->ip_id_count) - more;
46 #endif /* _NET_INETPEER_H */