1233 struct proto {  struct
1245 					  struct proto_accept_arg *arg);  argument
1247 	int			(*ioctl)(struct sock *sk, int cmd,
1249 	int			(*init)(struct sock *sk);
1250 	void			(*destroy)(struct sock *sk);
1251 	void			(*shutdown)(struct sock *sk, int how);
1252 	int			(*setsockopt)(struct sock *sk, int level,
1255 	int			(*getsockopt)(struct sock *sk, int level,
1258 	void			(*keepalive)(struct sock *sk, int valbool);
1260 	int			(*compat_ioctl)(struct sock *sk,
1263 	int			(*sendmsg)(struct sock *sk, struct msghdr *msg,
1265 	int			(*recvmsg)(struct sock *sk, struct msghdr *msg,
1267 	void			(*splice_eof)(struct socket *sock);
1268 	int			(*bind)(struct sock *sk,
1270 	int			(*bind_add)(struct sock *sk,
1273 	int			(*backlog_rcv) (struct sock *sk,
1275 	bool			(*bpf_bypass_getsockopt)(int level,
1278 	void		(*release_cb)(struct sock *sk);
1281 	int			(*hash)(struct sock *sk);
1282 	void			(*unhash)(struct sock *sk);
1283 	void			(*rehash)(struct sock *sk);
1284 	int			(*get_port)(struct sock *sk, unsigned short snum);
1285 	void			(*put_port)(struct sock *sk);
1287 	int			(*psock_update_sk_prot)(struct sock *sk,
1294 	unsigned int		inuse_idx;
1297 	bool			(*stream_memory_free)(const struct sock *sk, int wake);
1298 	bool			(*sock_is_readable)(struct sock *sk);
1300 	void			(*enter_memory_pressure)(struct sock *sk);
1301 	void			(*leave_memory_pressure)(struct sock *sk);
1302 	atomic_long_t		*memory_allocated;	/* Current allocated memory. */
1303 	int  __percpu		*per_cpu_fw_alloc;
1304 	struct percpu_counter	*sockets_allocated;	/* Current number of sockets. */
1313 	unsigned long		*memory_pressure;
1314 	long			*sysctl_mem;
1316 	int			*sysctl_wmem;
1317 	int			*sysctl_rmem;
1318 	u32			sysctl_wmem_offset;
1319 	u32			sysctl_rmem_offset;
1321 	int			max_header;
1322 	bool			no_autobind;
1324 	struct kmem_cache	*slab;
1325 	unsigned int		obj_size;
1326 	unsigned int		ipv6_pinfo_offset;
1327 	slab_flags_t		slab_flags;
1351 int proto_register(struct proto *prot, int alloc_slab);  argument
1842 static inline void sock_replace_proto(struct sock *sk, struct proto *proto)  in sock_replace_proto()
2897 static inline int sk_get_wmem0(const struct sock *sk, const struct proto *proto)  in sk_get_wmem0()
2906 static inline int sk_get_rmem0(const struct sock *sk, const struct proto *proto)  in sk_get_rmem0()