| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677 |
- #ifndef _AF_NETLINK_H
- #define _AF_NETLINK_H
- #include <linux/rhashtable.h>
- #include <linux/atomic.h>
- #include <linux/workqueue.h>
- #include <net/sock.h>
- #define NLGRPSZ(x) (ALIGN(x, sizeof(unsigned long) * 8) / 8)
- #define NLGRPLONGS(x) (NLGRPSZ(x)/sizeof(unsigned long))
- struct netlink_ring {
- void **pg_vec;
- unsigned int head;
- unsigned int frames_per_block;
- unsigned int frame_size;
- unsigned int frame_max;
- unsigned int pg_vec_order;
- unsigned int pg_vec_pages;
- unsigned int pg_vec_len;
- atomic_t pending;
- };
- struct netlink_sock {
- /* struct sock has to be the first member of netlink_sock */
- struct sock sk;
- u32 portid;
- u32 dst_portid;
- u32 dst_group;
- u32 flags;
- u32 subscriptions;
- u32 ngroups;
- unsigned long *groups;
- unsigned long state;
- size_t max_recvmsg_len;
- wait_queue_head_t wait;
- bool bound;
- bool cb_running;
- int dump_done_errno;
- struct netlink_callback cb;
- struct mutex *cb_mutex;
- struct mutex cb_def_mutex;
- void (*netlink_rcv)(struct sk_buff *skb);
- int (*netlink_bind)(struct net *net, int group);
- void (*netlink_unbind)(struct net *net, int group);
- struct module *module;
- struct rhash_head node;
- struct rcu_head rcu;
- struct work_struct work;
- };
- static inline struct netlink_sock *nlk_sk(struct sock *sk)
- {
- return container_of(sk, struct netlink_sock, sk);
- }
- struct netlink_table {
- struct rhashtable hash;
- struct hlist_head mc_list;
- struct listeners __rcu *listeners;
- unsigned int flags;
- unsigned int groups;
- struct mutex *cb_mutex;
- struct module *module;
- int (*bind)(struct net *net, int group);
- void (*unbind)(struct net *net, int group);
- bool (*compare)(struct net *net, struct sock *sock);
- int registered;
- };
- extern struct netlink_table *nl_table;
- extern rwlock_t nl_table_lock;
- #endif
|
