6 #define NLGRPSZ(x) (ALIGN(x, sizeof(unsigned long) * 8) / 8)
7 #define NLGRPLONGS(x) (NLGRPSZ(x)/sizeof(unsigned long))
12 unsigned int frames_per_block
;
13 unsigned int frame_size
;
14 unsigned int frame_max
;
16 unsigned int pg_vec_order
;
17 unsigned int pg_vec_pages
;
18 unsigned int pg_vec_len
;
24 /* struct sock has to be the first member of netlink_sock */
32 unsigned long *groups
;
34 size_t max_recvmsg_len
;
35 wait_queue_head_t wait
;
37 struct netlink_callback cb
;
38 struct mutex
*cb_mutex
;
39 struct mutex cb_def_mutex
;
40 void (*netlink_rcv
)(struct sk_buff
*skb
);
41 void (*netlink_bind
)(int group
);
42 struct module
*module
;
43 #ifdef CONFIG_NETLINK_MMAP
44 struct mutex pg_vec_lock
;
45 struct netlink_ring rx_ring
;
46 struct netlink_ring tx_ring
;
48 #endif /* CONFIG_NETLINK_MMAP */
51 static inline struct netlink_sock
*nlk_sk(struct sock
*sk
)
53 return container_of(sk
, struct netlink_sock
, sk
);
56 struct nl_portid_hash
{
57 struct hlist_head
*table
;
58 unsigned long rehash_time
;
64 unsigned int max_shift
;
69 struct netlink_table
{
70 struct nl_portid_hash hash
;
71 struct hlist_head mc_list
;
72 struct listeners __rcu
*listeners
;
75 struct mutex
*cb_mutex
;
76 struct module
*module
;
77 void (*bind
)(int group
);
78 bool (*compare
)(struct net
*net
, struct sock
*sock
);
82 extern struct netlink_table
*nl_table
;
83 extern rwlock_t nl_table_lock
;