/* * INETPEER - A storage for permanent information about peers * * Authors: Andrey V. Savochkin <saw@msu.ru> */ #ifndef _NET_INETPEER_H #define _NET_INETPEER_H #include <linux/types.h> #include <linux/init.h> #include <linux/jiffies.h> #include <linux/spinlock.h> #include <asm/atomic.h> struct inet_peer { /* group together avl_left,avl_right,v4daddr to speedup lookups */ struct inet_peer *avl_left, *avl_right; __be32 v4daddr; /* peer's address */ __u32 avl_height; struct list_head unused; __u32 dtime; /* the time of last use of not * referenced entries */ atomic_t refcnt; atomic_t rid; /* Frag reception counter */ atomic_t ip_id_count; /* IP ID for the next packet */ __u32 tcp_ts; __u32 tcp_ts_stamp; }; void inet_initpeers(void) __init; /* can be called with or without local BH being disabled */ struct inet_peer *inet_getpeer(__be32 daddr, int create); /* can be called from BH context or outside */ extern void inet_putpeer(struct inet_peer *p); /* can be called with or without local BH being disabled */ static inline __u16 inet_getid(struct inet_peer *p, int more) { more++; return atomic_add_return(more, &p->ip_id_count) - more; } #endif /* _NET_INETPEER_H */