1252 struct proto {  struct
1253 	void			(*close)(struct sock *sk,
1255 	int			(*pre_connect)(struct sock *sk,
1258 	int			(*connect)(struct sock *sk,
1261 	int			(*disconnect)(struct sock *sk, int flags);
1263 	struct sock *		(*accept)(struct sock *sk, int flags, int *err,
1266 	int			(*ioctl)(struct sock *sk, int cmd,
1268 	int			(*init)(struct sock *sk);
1269 	void			(*destroy)(struct sock *sk);
1270 	void			(*shutdown)(struct sock *sk, int how);
1271 	int			(*setsockopt)(struct sock *sk, int level,
1274 	int			(*getsockopt)(struct sock *sk, int level,
1277 	void			(*keepalive)(struct sock *sk, int valbool);
1279 	int			(*compat_ioctl)(struct sock *sk,
1282 	int			(*sendmsg)(struct sock *sk, struct msghdr *msg,
1284 	int			(*recvmsg)(struct sock *sk, struct msghdr *msg,
1286 	void			(*splice_eof)(struct socket *sock);
1287 	int			(*bind)(struct sock *sk,
1289 	int			(*bind_add)(struct sock *sk,
1292 	int			(*backlog_rcv) (struct sock *sk,
1294 	bool			(*bpf_bypass_getsockopt)(int level,
1297 	void		(*release_cb)(struct sock *sk);
1300 	int			(*hash)(struct sock *sk);
1301 	void			(*unhash)(struct sock *sk);
1302 	void			(*rehash)(struct sock *sk);
1303 	int			(*get_port)(struct sock *sk, unsigned short snum);
1304 	void			(*put_port)(struct sock *sk);
1306 	int			(*psock_update_sk_prot)(struct sock *sk,
1313 	unsigned int		inuse_idx;
1317 	int			(*forward_alloc_get)(const struct sock *sk);
1320 	bool			(*stream_memory_free)(const struct sock *sk, int wake);
1321 	bool			(*sock_is_readable)(struct sock *sk);
1323 	void			(*enter_memory_pressure)(struct sock *sk);
1324 	void			(*leave_memory_pressure)(struct sock *sk);
1325 	atomic_long_t		*memory_allocated;	/* Current allocated memory. */
1326 	int  __percpu		*per_cpu_fw_alloc;
1327 	struct percpu_counter	*sockets_allocated;	/* Current number of sockets. */
1336 	unsigned long		*memory_pressure;
1337 	long			*sysctl_mem;
1339 	int			*sysctl_wmem;
1340 	int			*sysctl_rmem;
1341 	u32			sysctl_wmem_offset;
1342 	u32			sysctl_rmem_offset;
1344 	int			max_header;
1345 	bool			no_autobind;
1347 	struct kmem_cache	*slab;
1348 	unsigned int		obj_size;
1349 	unsigned int		ipv6_pinfo_offset;
1350 	slab_flags_t		slab_flags;
1374 int proto_register(struct proto *prot, int alloc_slab);  argument
1465 static inline void proto_memory_pcpu_drain(struct proto *proto)  in proto_memory_pcpu_drain()
1476 	struct proto *proto = sk->sk_prot;  in sk_memory_allocated_add()  local
1487 	struct proto *proto = sk->sk_prot;  in sk_memory_allocated_sub()  local
1911 static inline void sock_replace_proto(struct sock *sk, struct proto *proto)  in sock_replace_proto()
2969 static inline int sk_get_wmem0(const struct sock *sk, const struct proto *proto)  in sk_get_wmem0()
2978 static inline int sk_get_rmem0(const struct sock *sk, const struct proto *proto)  in sk_get_rmem0()