| | 1 | /* |
| | 2 | * INETPEER - A storage for permanent information about peers |
| | 3 | * |
| | 4 | * Authors: Andrey V. Savochkin <saw@msu.ru> |
| | 5 | */ |
| | 6 | |
| | 7 | #ifndef _NET_INETPEER_H |
| | 8 | #define _NET_INETPEER_H |
| | 9 | |
| | 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> |
| | 15 | |
| | 16 | struct inet_peer |
| | 17 | { |
| | 18 | /* group together avl_left,avl_right,v4daddr to speedup lookups */ |
| | 19 | struct inet_peer *avl_left, *avl_right; |
| | 20 | __be32 v4daddr; /* peer's address */ |
| | 21 | __u16 avl_height; |
| | 22 | __u16 ip_id_count; /* IP ID for the next packet */ |
| | 23 | struct list_head unused; |
| | 24 | __u32 dtime; /* the time of last use of not |
| | 25 | * referenced entries */ |
| | 26 | atomic_t refcnt; |
| | 27 | atomic_t rid; /* Frag reception counter */ |
| | 28 | __u32 tcp_ts; |
| | 29 | unsigned long tcp_ts_stamp; |
| | 30 | }; |
| | 31 | |
| | 32 | void inet_initpeers(void) __init; |
| | 33 | |
| | 34 | /* can be called with or without local BH being disabled */ |
| | 35 | struct inet_peer *inet_getpeer(__be32 daddr, int create); |
| | 36 | |
| | 37 | /* can be called from BH context or outside */ |
| | 38 | extern void inet_putpeer(struct inet_peer *p); |
| | 39 | |
| | 40 | extern spinlock_t inet_peer_idlock; |
| | 41 | /* can be called with or without local BH being disabled */ |
| | 42 | static inline __u16 inet_getid(struct inet_peer *p, int more) |
| | 43 | { |
| | 44 | __u16 id; |
| | 45 | |
| | 46 | spin_lock_bh(&inet_peer_idlock); |
| | 47 | id = p->ip_id_count; |
| | 48 | p->ip_id_count += 1 + more; |
| | 49 | spin_unlock_bh(&inet_peer_idlock); |
| | 50 | return id; |
| | 51 | } |
| | 52 | |
| | 53 | #endif /* _NET_INETPEER_H */ |
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame_incremental